Geometry Review Benchmark 2025

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

• 90°

• 180°

• 360°

• 270°

Tags

CCSS.8.G.A.5

If a triangle has angles of 50° and 70°, what is the measure of the third angle?

• 30°

• 40°

• 60°

• 80°

Tags

CCSS.8.G.A.5

What type of triangle has one angle that measures more than 90°?

• Equilateral

• Right

• Acute

• Obtuse

Tags

CCSS.4.G.A.2

A triangle has angles of 20°, 30°, and x°. What is the value of x?

• 120°

• 130°

• 140°

• 150°

Tags

CCSS.8.G.A.5

Which of the following is a property of parallelograms?

• Opposite angles are supplementary

• Opposite sides are congruent

• Consecutive angles are equal

• Diagonals are perpendicular

Tags

CCSS.HSG.CO.C.11

In a parallelogram, which statement is always true?

• The diagonals bisect each other

• The diagonals are congruent

• The opposite sides are perpendicular

• All angles are right angles

Tags

CCSS.HSG.CO.C.11

If one angle of a parallelogram is 70°, what is the measure of its consecutive angle?

• 70°

• 110°

• 180°

• 90°

Tags

CCSS.HSG.CO.C.11

A triangle has angles of 45°, 45°, and x°. What is the value of x?

• 90°

• 60°

• 45°

• 75°

Tags

CCSS.8.G.A.5

Which of the following is true about the base angles of an isosceles triangle?

• They are always equal to the vertex angle.

• They are always different from each other.

• They are always equal to each other.

• They can be less than 30°.

In an isosceles triangle, which angles are congruent?

• The base angles

• The vertex angle

• All angles

• None of the angles