Question

diameter 14 cm area ❓ , perimeter ❓​

Answer 1

Step-by-step explanation:

area = πr²

r = d/2 = 14/2 = 7 cm

A = πr² = π×7² =49π

A= 153.93 ≈ 154 cm

perimeter = 2πr = 2×π×r = 2×π×7

P = 43.98 ≈ 44 cm

Answer 2

$d = 14 \: cm \\ r = \frac{14}{2} = 7cm$

$perimeter \: of \: circle = 2\pi \: r \\ 2 \times \frac{22}{7} \times 7 = 44 \: cm$

$area \: of \: circle = \pi \: r {}^{2} \\ \frac{22}{7} \times 7 \times 7 = 154 \: {cm}^{2}$