: Para cada figura, encuentra el área de la sobra:

A    =15*15

A    =225 cm

A    =3.1416(7.5)2

A    =3.1416(56.25)

A    =176.715

A    =A-A

A    =176.715-225

A    =48.285 cm

Al=b*h   A       =π(x)2/2                                                               A    =π(x)2/2     A    =π(x)2/2

24*24=576    3.1416(24)2= 1809.56/2 904.78                                 3.1416(20.5)2=    3.1416(10.25)2=

576-904.78                                                                                   1320.25-165.028=  495.092                                                                                                        

=328.78 cm