Question

A sprinklers placed at the center of a flower garden sprayer water covering circular areas if the watered is 1386cm, find radius and diameter maths answer

Answer 1

Answer:

The radius is 21 cms and the diameter is 42 cms

Step-by-step explanation:

Area covered by the sprinkler is a circle, and hence, if the radius is r, the area covered = πr^2

and π = 22/7

therefore, πr^2 = 1386

or, 22/7 x r x r = 1386

hence, r^2 = 1386 x 7/22 = 441

and r = 21 cms

we know that diameter = 2 x radius

hence, d = 2 x 21 = 42 cms