8MM Congruence

The following angle is

• Acute

• Obtuse

• Reflex

• Straight

Answer explanation

Obtuse if the angle is greater than 90 but less than 180

The value of the missing angle is

• 60

• 30

• 90

• 45

Answer explanation

90 - 30 = 60

• Complementary

• Supplementary

Answer explanation

Complementary = angles add to 90

Supplementary = angles add to 180

The angles marked on the pair of parallel lines shown are

• Alternate

• Corresponding

• Co-interior

• Complementary

Answer explanation

Make an upside down F

The values of x and y respective are

• 110, 70

• 110, 123

• 123, 110

• 123, 70

Answer explanation

x -> Corresponding angles
y -> Co-interior angles

The values of x, y and z, respectively is

• 99, 81, 99

• 99, 99, 81

• 81, 99, 99

• 99, 81, 81

Answer explanation

x -> Vertically opposite

y -> Corresponding

z -> Supplementary

All angles of a triangle add up to...

• 90

• 180

• 270

• 360

What type of triangle has angles of 45, 45 and 90 degrees?

• Acute

• Right

• Obtuse

• Equilateral

What is x?

• 30

• 60

• 80

• 150

Answer explanation

70 + 30 + x = 180
x = 80

What type of triangle has 2 equal side lengths?

• Scalene

• Right

• Isoceles

• Equilateral