diameter is 21 cm find the area of circle
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693/2 is the answer for the question
Answered by
2
area of circle = ㅠr^2
r =
diameter / 2
= 21/2
=10.5
area = ㅠr^2
=> 22/7 × 10.5^2 ( ' ㅠ' value as 22/7)
=> 22/7× 110 .25
=> 347 .28 sq.cm
(or)
=> 3.14×10.5^2 ( ' ㅠ' value as 3.14)
=> 3.14×110.25
=>346.18 sq .cm
both 347.28 and 346 .18 are approx. equal to the given question.You can use any one
-Park hyunxu.
r =
diameter / 2
= 21/2
=10.5
area = ㅠr^2
=> 22/7 × 10.5^2 ( ' ㅠ' value as 22/7)
=> 22/7× 110 .25
=> 347 .28 sq.cm
(or)
=> 3.14×10.5^2 ( ' ㅠ' value as 3.14)
=> 3.14×110.25
=>346.18 sq .cm
both 347.28 and 346 .18 are approx. equal to the given question.You can use any one
-Park hyunxu.
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