Study guide

Front

What is the value of x in the equation 2x + 4 = 24?

Back

x = 10

Tags

CCSS.7.EE.B.4A

Front

How can you determine if two triangles are congruent?

Back

Two triangles are congruent if they have the same size and shape, which can be proven using criteria such as SSS, SAS, ASA, AAS, or HL.

Tags

CCSS.8.G.A.2

Front

What is the sum of the exterior angles of any polygon?

Back

The sum of the exterior angles of any polygon is always 360 degrees.

Front

If angle a = 93° and angle b = 74°, what is the relationship between these angles?

Back

Angles a and b are complementary angles because they add up to 167°, which is less than 180°.

Tags

CCSS.7.G.B.5

Front

What is the formula to isolate x in the equation 3x - 5 = 16?

Back

To isolate x, add 5 to both sides to get 3x = 21, then divide by 3 to find x = 7.

Tags

CCSS.7.EE.B.4A

Front

What does it mean for two angles to be complementary?

Back

Two angles are complementary if the sum of their measures is 90 degrees.

Tags

CCSS.7.G.B.5

Front

What is the definition of congruent triangles?

Back

Congruent triangles are triangles that are identical in shape and size, meaning their corresponding sides and angles are equal.

Tags

CCSS.8.G.A.2

Front

What is the relationship between the angles in a triangle?

Back

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

Tags

CCSS.8.G.A.5

Front

How do you find the measure of an 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 the definition of an exterior angle?

Back

An exterior angle is formed by one side of a polygon and the extension of an adjacent side.

Tags

CCSS.8.G.A.5