The measures of two supplementary angles are in the ratio 4 : 11. What is the measure of the greater angle?

1. 106°
2. 121°
3. 132°
4. 154°

An angle is 80° less than three times its supplement. The angle is

1. 75°
2. 85°
3. 105°
4. 115°

In the given figure, AB || CD. If ∠BNO = 128° and ∠COM = 56°, then ∠MON is

1. 52°
2. 64°
3. 72°
4. 84°

Fill in the blanks :

(i) An angle whose measure is more than 180° but less than 360° is called a …………… .

(ii) A straight line that intersects two or more lines in a plane is called a …………… .

(iii) A pair of adjacent angles is said to be a …………… if these angles have one arm common and other arms as opposite rays.

(iv) Two intersecting lines make …………… pairs of vertically opposite angles.

(v) Two lines are said to be …………… to each other if they intersect at right angles.