Math, asked by kalyan781, 10 months ago

The perimeter of a semicircle is 144 cm. Then
its area (in sq.cms) is (Here take π=22/7)


1. 1226
2. 1416
3.1172
4. 1232​

Answers

Answered by botanyliker
2

Step-by-step explanation:

πr+2r=144

r(π+2)=144

r(36/7)=144

r=144×7/36

r=28

area=πr^2/2

={22/7×28×28}/2

=1232


kapilsaraswat781: haha
kapilsaraswat781: smart work
kalyan781: still the answer is not correct
kapilsaraswat781: i know
botanyliker: i have done it again
kapilsaraswat781: omg..there is written semicircle
kapilsaraswat781: i didn't see it
kapilsaraswat781: sorry
botanyliker: ya
kapilsaraswat781: hm
Answered by kapilsaraswat781
0

2Πr=144

r=(144*2*7)/22

r=91.63

area=Πr^2

area=26387.6


botanyliker: u r wrong
botanyliker: recheck
botanyliker: it
kalyan781: once see the question i gave options also
kapilsaraswat781: i am sure
kapilsaraswat781: that out of different options
kapilsaraswat781: none is the answer of this question
botanyliker: i have got my answer
kapilsaraswat781: yeah
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