Question

19. Find the diameter of a circle whose area is 628 cm² (use it = 3.14).

Answer 1

Answer:

Area = πr² = 628

Therefore

3.14 × r² = 628

314/100 × r² = 628

r² = 628 × 100/314

r² = 2 × 100

r² = 200

r = √200

r = 10√2

Diameter = 2r = 2 × 10√2 = 20√2 cm

hope it helps

tq./

Step-by-step explanation: