Math, asked by Anonymous, 10 days ago

Q.7 A path 5 m wide runs along inside a square park of side 90 m. Find a) area of the path. b) the cost of cementing it at the rate of Rs 150 per sq. m.​

Answers

Answered by chincholkarradhe123
1

Answer:

Given inner side of square park, s=100 cm

Area of inner square =100

2

=10000 cm

2

width of path,w=5 cm

Outer side of square =100+5+5=110 cm

Area of outer square =110

2

=12100 cm

2

Area of path =12100−10000=2100 cm

2

Cost of cementing at the rate of Rs 250 per 10 sq cm = Rs 250×210= Rs 52500

∴ Cost of cementing a 2100 cm

2

path =Rs. 52500

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