Question

Find the area of each shap correct to 1 d.p ( use 3.14 for
$\pi$
​

Answer 1

Answer:

9.42 cm

Step-by-step explanation:

This shape is called the semi-ellipse

Formula → r = d ÷ 2

here, r = 4cm ÷ 2

⇒ r = 2 cm

Formula → Area of semi-ellipse = $\frac{a\times{b}\times\pi }{2}$

a = radius and b = height

Here, a = 2 cm and b = 3 cm

So, A = $\frac{2\times3\times\pi }{2}$

⇒ A = 3 × π

⇒ A = 3 × 3.14

⇒ A = 9.42 cm

Hope it will help you.