UNDERSTANDING QUADRILATERALS CLASS VIII

If three angles of a quadrilateral are each equal to 75°, then, the fourth angle is

• (a) 150°

• (b) 135°

• (c) 45°

• (d) 75°

For which of the following figures, diagonals are perpendicular to each other?

• (a) Parallelogram

• (b) Kite

• (c) Trapezium

• (d) Rectangle

Which of the following figures satisfy the following properties?

All sides are congruent

All angles are right angles.

Opposite sides are parallel.

• a

• b

• c

• d

What is the sum of all the angles of a pentagon?

• (a) 180°

• (b) 360°

• (c) 540°

• (d) 720°

If two adjacent angles of a parallelogram are (5x – 5) and (10x + 35), then the ratio of these angles is

• (a) 1 : 3

• (b) 2 : 3

• (c) 1 : 4

• (d) 1 : 2

The angles of a quadrilateral are in the ratio 1 : 2 : 3 : 4. The smallest angle is

• (a) 72°

• (b) 144°

• (c) 36°

• (d) 18°

In a parallelogram PQRS, if = 60°, then other three angles are

• (a) 45°, 135°, 120°

• (b) 60°, 120°, 120°

• (c) 60°, 135°, 135°

• (d) 45°, 135°, 135°

If two adjacent angles of a parallelogram are in the ratio 2 : 3, then the measure of angles are

• (a) 72°, 108°

• (b) 36°, 54°

• (c) 80°, 120°

• (d) 96°, 144°

Find the values of x and y in the following parallelogram.

• 20⁰

• 30⁰

• 40⁰

• 50⁰

Find the value of x in the trapezium ABCD given below.

• 50⁰

• 60⁰

• 70⁰

• 80⁰

Tags

CCSS.7.EE.B.4

CCSS.7.G.B.5