Question

Please answer the problem above

Answer 1

Explanation:

Length of rectangle = 12 cm

Width of the rectangle = 6 cm

Area of the rectangle = 12 × 6

= 72 cm²

Area of two semicircles =
`2((1)/(2)\pi r^2 )`

= πr²

Here, r = radius of the semicircle

From the picture given,

Radius =
`(6)/(2)`

= 3 cm

Area of two semicircles = π(3)²

= 9π

= 28.27 cm²

Area of the entire composite figure = Area of the rectangle + Area of two semicircles

= 72 + 28.27

= 100.27 cm²