Question

2. Find the perimeter of the rectangles whose lengths and breadths :
a) 1 = 15 cm, b = 12 cm
b) 1 = 2.6 m, b = 1.3 m
c) 1 = 54 cm, b = 40 cm
d) 1 = 12 m, b = 9 m
e) 1 = 5 m, b = 7 m
f) 1 = 18.5 m, b = 16.5 m
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Answer 1

Answer:

perimeter of the rectangles= 2(l+b)

a. 2(15+12)=54cm

b. 2(2.6+1.3)=7.8m

c. 2(54+40)=188cm

d. 2(12+9)=42m

e. 2(5+7)=24m

f. 2(18.5+16.5)=70m

Answer 2

Answer:

I am doing option B.

Step-by-step explanation:

length=2.6cm

breadth=1.3m convert into cm 1.3m*100=130cm

Perimeter of rectangle=2(l+b)

=2(2.6cm+130cm)

=2(132.6cm)

=2*132.6cm

=265.2cm. Ans

ALL QUESTIONS ARE SOLVED BY THIS METHOD.

HOPE,IT IS USEFUL