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d=15cm
H²=d²-a²
H²=15²-9² =225-81 =144
H=√144
H=12cm
V=a²H
V=9²*12 =81*12
V=972 cm²
^ = do potęgi drugiej
a^ + b^ = c^
9^ + b^ = 15^
81 + b^ = 225
b^ = 225 - 81
b^ = 144
b = 12
Pp = 9cm * 9cm = 81cm2
V = 81cm2 * 12 = 972 cm 3
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