the diameter of a semicircle is 140 mm. find the circumference in cm
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Answered by
3
140mm = 14 cm
circumference of semicircle )=πr
=22/7 × 14/2
=22cm
circumference of semicircle )=πr
=22/7 × 14/2
=22cm
Nikhildhiman2004:
galat h....1cm = 10mm
sorry i haven't noticed it
so , ans is 22
hmm
Answered by
12
Hey mate ___
Here is your answer-
_____
let,
the diameter of a semicircle = 140mm
We now,
1cm = 10mm
Therefore, 140mm = 14cm
radius of semicircle = 7cm
Perimeter of semicircle = πr
= 22/7 × 7
= 22cm
Therefore, the perimeter of semicircle is 22cm.
Hope helpful __
Here is your answer-
_____
let,
the diameter of a semicircle = 140mm
We now,
1cm = 10mm
Therefore, 140mm = 14cm
radius of semicircle = 7cm
Perimeter of semicircle = πr
= 22/7 × 7
= 22cm
Therefore, the perimeter of semicircle is 22cm.
Hope helpful __
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