Question

1. Find the area of a circle of diameter 8.4 m.​

Answer 1

Answer:

55.44 m²

Step-by-step explanation:

diameter = 8.4 m

radius = 8.4/2 = 4.2 m

$area = \pi {r}^{2} = \frac{22}{7} \times 4.2 \times 4.2 = 22 \times 0.6 \times 4.2 = 55.44$

Answer 2

Diameter = 8.4 m

Radius = 8.4/2 = 4.2 m

Area of a circle = πr^2

=(22/7) × 4.2 × 4.2

= 22×6×42/10

=554.4 m sq .