Chapter 12 A

The drawn angle is

• Right angle

• Obtuse angle

• Acute angle

• Straight angle

The drawn angle is

• Right angle

• Obtuse angle

• Acute angle

• Straight angle

Suppose angles 3 and 4 are complementary and ∠ 3 = 20° Then ∠ 4 =------°.

• 160°

• 60°

• 100°

• 70°

The drawn angle is.

• Right angle

• Obtuse angle

• Acute angle

• Straight angle

Suppose angles 1 and 2 are Supplementary and ∠ 1 = 48° Then ∠ 2 =------°.

• 160°

• 42°

• 130°

• 132°

The drawn angle is

• Right angle

• Obtuse angle

• Acute angle

• Straight angle

Suppose ∠ 3 =40° and ∠ 7 = 160°. Find the measure of angle ∠ 8.

• 60°

• 20°

• 120°

• 36°

In illustration, suppose l // m , ∠ 1=3x-50, and ∠ 2= x+60 . Find the measure of angle 1.

• Angle 1 = 85°

• Angle 1 = 55°

• Angle 1 = 120°

• Angle 1 = 115°

In illustration, suppose l // m , ∠ 3=4x-10, and ∠ 4= 2x+30 . Find the measure of angle 3.

• Angle 3 = 85°

• Angle 3 = 20°

• Angle 3 = 120°

• Angle 3 = 70°

In illustration, suppose l // m, ∠ 1=3x-44, and ∠ 2= x+52. Find the value of x.

• x = 96°

• x = 48°

• x = 38°

• x = 63°