ANGLES OF TRIANGLES AND POLYGONS

Front

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

Back

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

Tags

CCSS.8.G.A.5

Front

What is the measure of each angle in an equilateral triangle?

Back

Each angle in an equilateral triangle measures 60°.

Tags

CCSS.8.G.A.5

Front

Define a scalene triangle.

Back

A scalene triangle is a triangle with all sides of different lengths and all angles of different measures.

Tags

CCSS.4.G.A.2

Front

What is the measure of the exterior angle of a triangle?

Back

The measure of an exterior angle of a triangle is equal to the sum of the measures of the two opposite interior angles.

Tags

CCSS.8.G.A.5

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length and the angles opposite those sides are equal.

Tags

CCSS.4.G.A.2

Front

How do you find the measure of an unknown angle in a triangle?

Back

To find the measure of an unknown angle in a triangle, subtract the sum of the known angles from 180°.

Tags

CCSS.8.G.A.5

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90°.

Tags

CCSS.4.G.A.2

Front

What is the relationship between the angles in a polygon?

Back

The sum of the interior angles of a polygon can be calculated using the formula (n-2) × 180°, where n is the number of sides.

Front

What is the measure of each angle in a regular pentagon?

Back

Each angle in a regular pentagon measures 108°.

Front

Define complementary angles.

Back

Complementary angles are two angles whose measures add up to 90°.

Tags

CCSS.7.G.B.5