A circular disc has a diameter of 126 cm. Find its circumference and area.
Also, find the cost of painting the plate at Rs. 5 per sq. cm.(π = 22/7)
Answers
Answered by
1
Answer:
Circumference of circle = 2πr
= 2 × 22/7 × 7
= 44 cm
Area of circle = πr²
= 22/7 × 7 × 7 cm²
= 154 cm²
Answered by
1
Answer:
Circumference = π*d
22/7*126
2218
=396 cm ²
Area = π*r²
22/7*63*63
22*9*63
= 12494 cm²
cost of painting = 12494*5
= ₹ 62470
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