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Serga [27]
2 years ago
8

LOOK AT THE PICTURE BLOW

Mathematics
1 answer:
navik [9.2K]2 years ago
8 0

Answer:

A = 31.8 cm2

Step-by-step explanation:

Yhe formula:

A=\frac{\pi r^{2}(Central.Angle) }{360}

r=18/2=9cm

central angle = (180-135)° = 45°

A=\frac{\pi ((9)^{2}(45) }{360} = \frac{\pi (81)(45)}{360} = 10.125\pi cm^{2}

A=31.8cm^{2}

Hope this helps

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