Question

calculo de áreas calcula cada una de las áreas
Explicación

resultado de las 5 ​

Answer 1

Respuesta:R

Explicación paso a paso:

Answer 2

Explicación paso a paso:

A)

$a = \pi {r}^{2} \\ a = (3.1416) {(3cm)}^{2} \\ a = (3.1416)(9 {cm}^{2} ) \\ a = 28.2744 {cm}^{2}$

B)

$a = \pi {r}^{2} \\ a = (3.1416) {(2.9cm)}^{2} \\ a = (3.1416)(8.41 {cm}^{2} ) \\ a = 26.420856 {cm}^{2}$

C)

$a = \pi {r}^{2} \\ a = (3.1416) {(4.6cm)}^{2} \\ a = (3.1416)(21.16 {cm}^{2} ) \\ a = 66.476256 {cm}^{2}$

D)

$a = \pi {r}^{2} \\ a = (3.1416) {(5cm)}^{2} \\ a = (3.1416)(25 {cm}^{2} ) \\ a = 78.54 {cm}^{2}$

E)

$a = \pi {r}^{2} \\ a = (3.1416) {(2cm)}^{2} \\ a = (3.1416)(4 {cm}^{2} ) \\ a = 12.5664 {cm}^{2}$