Question

9. The area of a circular plate is 77.5 cm', what is diameter of the
(a) 5 cm (b) 6 cm. (c) 7 cm. (d) 8 cm
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Answer 1

Answer:

hope this answer help you

Answer 2

Step-by-step explanation:

let radius be r then diameter is 2r

Area of circular plate = 77.5

$\pi {r }^{2} = 77.5$

${r }^{2} = 77.5 \times 7 \div 22$

r=4.9

approx 5

so diameter is 10