A circle has a diameter of 10 cm.

What is the best approximation of its area?

Use 3.14 to approximate for π .

15.7 cm²
31.4 cm²
78.5 cm²
314 cm²

Respuesta :

the area= pi x radius^2

3.14 x 5^2
3.14 x 25
78.5 cm2

Answer:

78.5

Step-by-step explanation: