7th Grade Quiz Review: Angles & Triangles

What do you call an angle that measures more than 90 degrees but less than 180 degrees?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

What type of triangle has sides of different lengths?

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Right triangle

What is the value of x if m∠A + m∠B + m∠C = 180° and m∠A = 50°, m∠B = 70°?

• 50°

• 60°

• 70°

• 80°

If m∠A = 75° and m∠B = 105°, are these angles complementary or supplementary?

• Complementary

• Supplementary

• Adjacent

• Vertical

What is the relationship between the angles in a linear pair?

• They are complementary (sum to 90 degrees).

• They are supplementary (sum to 180 degrees).

• They are equal (sum to 360 degrees).

• They are adjacent (share a common side).

What is the measure of the third angle in a triangle if the other two angles are 45° and 45°?

• 60°

• 75°

• 90°

• 100°

What is the measure of an angle that is a straight angle?

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

If two angles are complementary, what is the sum of their measures?

• 45 degrees

• 90 degrees

• 180 degrees

• 360 degrees

If m∠1 = 30°, what is m∠2 if m∠1 and m∠2 are vertical angles?

• 10°

• 30°

• 45°

• 60°

If one angle in a triangle is 90 degrees, what type of triangle is it?

• Acute triangle

• Obtuse triangle

• Right triangle

• Scalene triangle