Question

Que. 5 The Perimeter of a rectangular swimming pool is 102 m. Its length is 3 m more than thrice its breadth .What are the length and breadth? Answer the following Questions Que. 5(a) Formula for perimeter of rectangle ?
Que. 5(b ) If the breadth is considered as x then the linear equation formed for finding perimeter in the above question is
Que. 5 (c ) What is the value of length and breadth​

Answer 1

Answer:

a) perimeter of a rectangle formula - 2(l+b)

b)2(3x+3+x) = 102m

c) 2(3x+3+x) = 102m

2(4x+3)

2*4x+2*3=102

8x+6=102

8x=102-6=96

X= 96/8=12

Hence,

Breadth= X=12

Length= 3x+3= 3*12+3 = 36+3=39

(check:2(l+b)= 2(12+39) = 102)

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