## Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.

## Question

primary 6 | Maths
| Measurement

** One Answer Below **

Anyone can contribute an answer, even non-tutors.

**Answer This Question**

Plz help me...TQ

Length = l = 8 cm

Breadth = b = 4cm

Semi-circle 1:

Radius = r1 = 4cm

Semi-circle 2:

radius = r2 = 2cm

Area of rectangle is l * b = 8*4 = 32

Area of semi-circle 1 = (Pi * r1*r1)/2 = (Pi*4*4)/2

= 8Pi

Area of semi-circle 2 = (Pi*r2*r2)/2 = (Pi*2*2)/2

=2Pi

Area of the given figure = Area of Semi-circle 1 +

Area of Semi-circle 2 +

Area of Rectangle

= 8 Pi + 2 Pi + 32

=(10 Pi + 32) cm2

Option (4) is the answer

Since, the given figure is a semi-circle, We are using the area formula as,

(PI * r * r ) * 1/2 which equals half the area of a circle.

### See 1 Answer