Question

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

Answer 1

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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