UNDERSTANDING QUADRILATERALS CLASS-8

Identify the figure

• Hexagon

• Octagon

• Nonagon

• Decagon

Identify the polygon

• Octagon

• Nonagon

• Decagon

• Heptagon

Sum of the Measures of the Exterior Angles of a

Polygon

• 180

• 360

• 90

• None

Opposite angles are supplementary in parallelogram.

• True

• False

Diagonals bisect each other at right angle in rectangle.

• True

• False

Find the number of sides of a regular polygon whose each exterior angle has a measure of 60 $\degree$  

• 6

• 8

• 12

• 5

In the following polygons, which of the polygon is concave polygon?

• 
• 
• 
• 

How many diagonals have a regular hexagon?

• 9

• 5

• 7

• 8

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

• (a) 150°

• (b) 135°

• (c) 45°

• (d) 75°

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

• (a) 180°

• (b) 360°

• (c) 540°

• (d) 720°