Question

l=8cm b=? p= 42 cm area=?
l=11 b=? p=? area=88​

Answer 1

Step-by-step explanation:

length-8cm

breadth-?

perimeter-42cm

perimeter-2(l+b)

42=2(8+b)

42/2=8+b

21=8+b

21-8=b

13=b (Ans)

l*b=88

11*b=88

b=8

perimeter=2(l+b)

=2(11+8)

=2*19=38(ans)

Answer 2

perimeter = 2(L+B)

42 = 2 (8+B)

42 = 16 +2B

42-16 = 2B

26÷2 = B

13 = B

AREA = L×B = 8×13=104

area = L×B

88 = 11×B

88÷11= B

8 = B

Perimeter = 2(L+B) =2(11+8) = 38