Math, asked by kalyan781, 1 year 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

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

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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