Area del circulo

1)¿Cuál es el área de un circulo cuyo radio es 30 cm2?

A=TTR2                            A=(3,1 4 (30 CM2)
TT=3,14   
R=30 CM                        3,14
                                        9, 00
                                        =000
                                        000
                                       2826
                                      =282,60       A=2826,0 CM2


2)¿Cual es el área de un circulo cuyo radio es 10 cm2?


A=TTR2                       A=(3,14) (10CM)
TT=3,14                         
R=10 CM                       3,14
                                       1,00
                                     =000
                                      000
                                     3,14
                                     =314, 00            A=314,00 CM2


3)¿Cuál es el área de un circulo cuyo radio es 40 cm2?


A=TTR2                         A=(3,14) (40 CM)
TT=3,14            
R=40 CM                       1,600
                                         3,14
                                     =6,400
                                     16,00
                                   480, 0
                                =502, 400     A=5024,00 CM2


4)¿Cuál es el área de un circulo cuyo radio es 50 cm2?


A=TTR2                      A=( 3,14) (50 CM?
TT=3,14
R=50 CM                      2.500
                                         3,14
                                   =10,000
                                    25, 00
                                 750, 00
                             =785,000              A=785 0,00 CM2


5)¿Cuál es el área de un circulo cuyo radio es 60 cm2?


A=TTR2                      A=(3,14) (60 CM)
TT=3,14                    
R=60 CM                      3,600
                                         3,14
                                    =144,000
                                    136,00
                                  108,00
                                  =113,0400          A=11304,00 CM2