Question

please solve this its very urgent...​

Answer 1

Step-by-step explanation:

perimeter of quadrant = 0.5πr + 2r.

therefore, 75=0.5×22/7×r+2r

75=5/10×22r/7×2r

75×10×7 =r×r

5×22

75×7 = r^2

11

525 = r^2

11

47.72= r^2

therefore, r= √47.72 or √48

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Answer 2

perimeter of quadrant = 0.5πr + 2r.

therefore, 75=0.5×22/7×r+2r

75=5/10×22r/7×2r

75×10×7 =r×r

5×22

75×7 = r²

525 = r²

47.72= r²

therefore,

r= √48