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ana9340
16.04.2021 •
Mathematics
Find
Find the formulae for the area A and the perimeter P of the shape shown.
Find the area and perimeter when r = 5cm.
Find r when A = 100 cm.
9 Find r when P = 50 cm.
Find the value of r that makes A = P numerically.
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Ответ:
25^2= 24^2 + leg2 ^2
leg2 ^2= 25^2-24^2= 625- 576=49
⇒ leg = V49
⇒ leg= 7