Find the perimeter of a given figure.
ro
20A
14cm
Answers
Given:-
breadth of rectangle :- 14cm
length of rectangle :- 20m = 2000cm
diameter of semi circle :- 14cm
Find :-
perimeter
Now,
we calculate radius,
r = d/2 = 14/2 = 7cm
A/q,
1) perimeter of rectangle = 2(l + b)
= 2(2000+14)
= 2× 2014
= 4028 cm
2) perimeter of semicircle = πr
=>3.14 × 7
=> 21.98cm
Here,
we have two semicircle
so,
perimeter of both semicircle => 2 × 21.98
=> 43.96cm
=>total perimeter of given figure = perimeter of both semicircle+ perimeter of rectangle
=> 43.96+ 4028 cm
=> 4071.96 cm
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