Triangles

Front

What is the sum of the interior angles in a triangle?

Back

The sum of the interior angles in a triangle is always 180°.

Tags

CCSS.8.G.A.5

Front

What type of triangle has one angle greater than 90°?

Back

An obtuse triangle has one angle greater than 90°.

Tags

CCSS.4.G.A.2

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle in which all three sides and all three angles are different.

Tags

CCSS.4.G.A.2

Front

Define an acute triangle.

Back

An acute triangle is a triangle where all three angles are less than 90°.

Tags

CCSS.4.G.A.2

Front

What characterizes a right triangle?

Back

A right triangle is characterized by having one angle that measures exactly 90°.

Tags

CCSS.2.G.A.1

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle in which all three sides are equal in length and all three angles are equal, each measuring 60°.

Tags

CCSS.4.G.A.2

Front

How do you find the measure of the third angle in a triangle if two angles are known?

Back

To find the measure of the third angle, subtract the sum of the two known angles from 180°.

Tags

CCSS.8.G.A.5

Front

What is the relationship between the sides and angles in a triangle?

Back

In a triangle, the largest angle is opposite the longest side, and the smallest angle is opposite the shortest side.

Tags

CCSS.HSG.CO.C.10

Front

What is the Pythagorean theorem?

Back

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides (a² + b² = c²).

Tags

CCSS.8.G.B.8

Front

What is the difference between a right triangle and an obtuse triangle?

Back

A right triangle has one angle that is exactly 90°, while an obtuse triangle has one angle that is greater than 90°.

Tags

CCSS.4.G.A.2