What do you have to know to get top grades in geometry? All the angles. Why was the obtuse angle upset? Because he was never right.

What's a polygon? A dead parrot. Who invented the Round Table? Sir Cumference. What do you get when you cross geometry with McDonalds? A plane cheeseburger. What do your eyes do when you see a tough geometry problem?

They dilate. What did the complementary angle say to the isosceles triangle? Nice legs. Where did Christopher Complementary begin his journey? At the Verta Seas. How do you catch a Geomotrysaurus Rex? With a Zoid Trap, the same way you would trap-a-zoid. What anesthetic do you receive when you are getting your teeth pulled by a Geometry teacher? What did the circle say to the tangent line?

Ice-sosceles triangles. What do you get if you divide the circumference of a jack-o-lantern by its diameter? Pumpkin-pie What happened to the teacher that was arrested trying to board an airplane with a compass, a protractor and a calculator?

He was charged with carrying weapons of math instruction. How many calories are there in that slice of chocolate pi? Approximately 3. A line. What do you call an angle which is adorable? Acute angle What do you call people who are in favor of tractors? Protractors What do you use to tie up a package? A Chord Why does nobody talk to circles? Because there is no point. Why were the similar triangles weighing themselves?

They were finding their scale. Why did the triangle marry the triangle? They were right for each other. Where do circles, ellipses, hyperbolas and parabolas like to hang out in the summer? Coney Island. What did the triangle say to the circle?An equilateral triangle is also referred to as an equiangular triangle.

Equilateral means 'equal sides', whereas equiangular means 'equal angles'.

Explained theme songA triangle has two sides measuring 16 meters and one side measuring 7 meters. What type of triangle is this? Note: km denotes kilometer. If two sides of a triangle are equal, then the angles opposite to them are equal as per the isosceles triangle theorem in Euclidean geometry. Which triangle has three unequal sides? Hence, it is an acute triangle or acute-angled triangle. It is the longest side in the right triangle.

The other two sides are called the legs of the right triangle. What is a triangle that contains no right angle called? Types of Triangles. Answer: Answer: Equilateral In an equilateral triangle, all sides are equal in length. Answer: Answer: Isosceles In an isosceles triangle, two sides are equal in length.

Answer: Answer: Scalene In a scalene triangle, all sides and internal angles are different from one another. Answer: Answer: Scalene In a scalene triangle, no two sides are equal in length. Answer: Answer: Hypotenuse The side opposite to the right angle is the hypotenuse.

Answer: Answer: Oblique A triangle that does not contain a right angle is called an oblique triangle.

Sierrs blair coyle xxMath - Geometry Lesson Plans. Types of Triangles Formats. Info Page. Privacy Policy Disclaimer and Copyright.The following diagram shows a triangle and the ratio of its sides. Scroll down the page for more examples and solutions using the triangle. You can also recognize a triangle by the angles. Find the length of the hypotenuse of a right triangle if the lengths of the other two sides are both 3 inches.

Step 1: This is a right triangle with two equal sides so it must be a triangle. Step 2: You are given that the both the sides are 3. Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page. Related Topics: right triangle Other special right triangles More Geometry Lessons Recognizing special right triangles in geometry can provide a shortcut when answering some questions. A special right triangle is a right triangle whose sides are in a particular ratio.

You can also use the Pythagorean theorem formula, but if you can see that it is a special triangle it can save you some calculations. Note that a triangle is an isosceles right triangle. It is also sometimes called a right triangle.

A right triangle with two sides of equal lengths is a triangle.In a triangle, the length of the hypotenuse is 6. What is the length of the shortest side? The figure below contains only horizontal and vertical lines. Calculate its perimeter. The circumference of a circle is What is its area? The figure below is a parallelogram with two angles given in terms of x. Determine the value of x. The figure below is an equilateral triangle with sides of length 6.

What is the area of the triangle? In a triangle, the ratio of the lengths of the sides is 1: Therefore, the smallest side is half the length of the hypotenuse, so its length is. The problem provides the diameter of the circle, which is twice the radius. So, Now substitute this value into the area formula and calculate the area. The perimeter of a figure is the length around it. To find the perimeter of a polygon, add the lengths of its sides.

Start by filling in the missing lengths of the sides. For instance, the length of the shorter missing side is 6 because if you add it to the 3 on the left, the result should be the 9 on the right. Finally, add the side lengths together to find the perimeter. Substitute the given circumference into this formula and solve for r. Use this to find the area of the circle. Substitute the length of the radius into this formula and calculate the area.

## Geometry Chapter 7 Test Answer Keys

The sum of the measures of the interior angles of a polygon with n sides is Therefore, substitute 6 for n into the formula and calculate. In the figure, the base is 8 and the height is 5. Substitute these values into the formula and calculate the area. Use this to set up an equation, and then solve it for x. To determine which choice is correct, test each set of values by substituting them into the Pythagorean Theorem.

Start with the first set of numbers: 3, 13, and Since the result is not a true equality, the first set of values does not represent the side lengths of a right triangle. Test the other four choices. The only values that satisfy the Pythagorean Theorem are 5, 12, and An equilateral triangle is also referred to as an equiangular triangle. Equilateral means 'equal sides', whereas equiangular means 'equal angles'.

A triangle has two sides measuring 16 meters and one side measuring 9 meters. What type of triangle is this?

### Geometry Chapter 7 Test Answer Keys

Note: km denotes kilometer. If two sides of a triangle are equal, then the angles opposite to them are equal as per the isosceles triangle theorem in Euclidean geometry.

Which triangle has three unequal sides? Hence, it is an acute triangle or acute-angled triangle. It is the longest side in the right triangle. The other two sides are called the legs of the right triangle. What is a triangle that contains no right angle called?

Types of Triangles. Answer: Answer: Equilateral In an equilateral triangle, all sides are equal in length. Answer: Answer: Isosceles In an isosceles triangle, two sides are equal in length. Answer: Answer: Scalene In a scalene triangle, all sides and internal angles are different from one another.

Answer: Answer: Scalene In a scalene triangle, no two sides are equal in length. Answer: Answer: Hypotenuse The side opposite to the right angle is the hypotenuse. Answer: Answer: Oblique A triangle that does not contain a right angle is called an oblique triangle.

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