Math, asked by Akashkumbhakar, 1 year ago

the diameter of two circular plates are respectively 10cm and 24cm .what is the diameter of the plates which has area equal to the combined area of the two given plates?

chiragverma10: see my answer dear

chiragverma10: here is full solutions

Answers

Answered by superman5

detailed solution in pic.plz see it.hope you will be benefitted.

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Akashkumbhakar: not satisfied

Akashkumbhakar: answer is right but not very satisfied

superman5: ok.r1=10/2=5,r2=24/2=12. so according to the question π( r1)2+π(r2)2=πR2. after putting the value of r1 and r2 and cancel π both side you will get R2=169, R=13cm. so diameter=2*13=26cm

Akashkumbhakar: i not understand

Answered by chiragverma10

dear,
here is u r questionn's hint........
r1=5,area=πr^2=22/7*25=

r2=12,area=πr^2=22/7*144
now after adding these two areas,
22/7*25+22/7*144=π(R1)^2
22/7(25+144)=22/7*R1^2
R1^2=169
R1=13cm
now as we know that diameter =2R=2*13=26cm.

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chiragverma10: if it help u then please mark as I liest

Akashkumbhakar: answer is 26

chiragverma10: Ya

chiragverma10: see now

chiragverma10: in question diameter is asking

chiragverma10: now have you get??

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