Mensuration

The side of a square is 10 cm. How many times will the new perimeter become if the side of the square is doubled?

• 2 times

• 4 times

• 6 times

• 8 times

The amount of region enclosed by a plane closed figure is called its _________.

• Perimeter

• Area

What happens to the area of a rectangle whose length is halved and breadth is doubled?

• The area remains the same

• The area increases

• The area decreases

If the length of a square is doubled, what happens to its area?

• The area also doubles

• The area increases four times

• The area remains the same

• The area is halved

What is the perimeter of a regular hexagon of side 6.5 cm?

• 13 cm

• 32.5 cm

• 29 cm

• 39 cm

Anushka wants to paint the wall of her home. Which of the following information will she need before buying the paint?

• She needs to have the information regarding the perimeter of her wall

• She needs to have the information regarding the area of her wall

You are given a wire and asked to make an isosceles triangle with two sides measuring 25 cm and the third side measuring 10 cm. You are then asked to make an equilateral triangle using the same wire. What will be the length of each side of this equilateral triangle?

• 25 cm

• 35 cm

• 20 cm

• 15 cm

Length of a rectangle is three times its breadth. Perimeter of the rectangle is 40 cm. Calculate its breadth?

• 15 cm

• 5 cm

• 10 cm

• 20 cm

Three squares are joined together as shown in the figure. Their sides are 4cm, 10cm and 3cm. The perimeter of this figure will be _____ cm.

The perimeter of an isosceles triangle is 28 cm. If its unequal side is 8 cm, what will be the length of the other two sides?

• 18 cm

• 10 cm

• 36 cm

• 5 cm