(iii) Find the cost of fencing the playground and parking area at the rate of ₹2 per unit.... | Case-Study 1m | Maths | SuperPadhai

Areas Related To Circles > Question

Case-Study1 markYear: 2023EasyCBSE Class 10

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Question

(iii) Find the cost of fencing the playground and parking area at the rate of ₹2 per unit.

Solution

1

Required Perimeter

= 2 (l + b) + \frac{2 π r}{2} = 2 (14 + 7) + \frac{22}{7} \times \frac{7}{2} = 42 + 11 = 53

units

+0.5 marks

2

Cost of fencing

= 53 \times 2 = ₹106

+0.5 marks

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