Q14 of 61 Page 93

If length of a rectangle is halved and breadth is doubled then the area of the rectangle obtained remains same.

Let us try this using formula.

Area of rectangle = l × b


New condition length = l / 2


Breadth = 2b



So new area = l× b


So area remain unchanged.


So statement is true.


More from this chapter

All 61 →
12

A rectangle and a square have the same perimeter (Fig. 6.10).


A. The area of the rectangle is _________.


B. The area of the square is _________. Fig. 6.10

 13

(a) 1m = _________ cm.

(b) 1sqcm = _________ cm × 1cm.


(c) 1sqm = 1m × _________ m = 100cm × _________ cm.


(d) 1sqm = _________ sqcm.

 15

Area of a square is doubled if the side of the square is doubled.

 16

Perimeter of a regular octagon of side 6cm is 36cm.