class 7 maths, Chapter 5 Lines and Angles

When the sum of the measures of two angles is 90°, the angles are called

• supplementary angles

• complementary angles

• adjacent angles

• vertically opposite angles

Tags

CCSS.7.G.B.5

The measure of the supplement of the angle 120° is

• 30°

• 45°

• 60°

• 90°

Tags

CCSS.7.G.B.5

The angles in a linear pair are

• complementary

• supplementary

• not adjacent angles

• vertically opposite angles

Tags

CCSS.7.G.B.5

If two parallel lines are cut by a transversal, each pair of the corresponding angles are _________ in measure.

• complimentary

• supplementary

• unequal

• equal

Tags

CCSS.8.G.A.5

Angles, which are both supplementary and vertically opposite are

(a) 95°, 85° (b) 90°, 90°

(c) 100°, 80° (d) 45°, 45°

• (a) 95°, 85°

• b) 90°, 90°

• (c) 100°, 80°

• (d) 45°, 45°

Tags

CCSS.7.G.B.5

Statements (I) and (II) are as given below:

I: If two lines intersect, then the vertically opposite angles are equal.

II: If a transversal intersects two other lines, then the sum of two interior angles on the same side of the transversal is 180°.

Then,

• a) both (I) and (II) are true

• (b) (I) is true and (II) is false

• (c) (I) is false and (II) is true

• (d) both (I) and (II) are false

Tags

CCSS.8.G.A.5

In a pair of adjacent angles, (i) vertex is always common, (ii) one arm is always common, and (iii) uncommon arms are always opposite rays.

Then,

• a) all (i), (ii) and (iii) are true

• (b) (iii) is false

• (c) (i) is false but (ii) and (iii) are true

• (d) (ii) is false

Tags

CCSS.7.G.B.5

Which of the following pairs of angles is not a pair of complementary angles?

• 60°, 30°

• 66°, 34°

• 0°, 90°

• 160°, 30°

Tags

CCSS.7.G.B.5

Which of the following statements is true?

• Two acute angles can form a linear pair.

• Two obtuse angles can form a linear pair

• Two right angles can form a linear pair

• One obtuse angle and one acute angle cannot form a linear pair

Tags

CCSS.7.G.B.5

When two parallel lines are intersected by a transversal line, then angles on the same side of transversal are

• complementary angles

• supplementary angles

• adjacent angles

• equal