110CM²
1/2πr²+d1*d2=195 cm²
1/2*22/7r²+2r*2r=195cm²
11/7r²+4r²=195cm²
39/7r²=195cm²
r²=195*7/39
r²=35cm
πr²=35*22/7=110cm²
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110CM²
1/2πr²+d1*d2=195 cm²
1/2*22/7r²+2r*2r=195cm²
11/7r²+4r²=195cm²
39/7r²=195cm²
r²=195*7/39
r²=35cm
πr²=35*22/7=110cm²