Question

(a) Find the area of the shaded region in the figure below. (Take a = 3.14)
4 m
5 m
12 m
[31
(6)
(11)
(c)
14 m
TH
6m: fom
Ilm
*
- 7 m
5 m
th
The figure shows the plan of a room. Find the
(i)
perimeter of the whole room
area of the whole room
[3]
8
[2]
6
/13 cm 2
3
5
4
The diagram shows a circle of radius 13cm being divided into S equal sectors. Find
the
(i)
(1)
Area of the circle,
Total area of the sectors 1 , 3, 5 and 7
[Take 3.14]

Answer 1

This is lit if information can you take out what is not needed

Answer 2

Step-by-step explanation:

Firstly find the area if the parallelogram which is

=length of the base × vertical height

=

$12m \times 5m$

=

$60 {m}^{2}$

Now solve for the area of the circle

=

$\pi {r}^{2}$

RADIUS = DIAMETER ÷2

$\frac{4m}{2}$

=

$2m$

so the area of the circle

=

$\frac{22}{7} \times 2m \times 2m$

$\frac{22}{7} \times 4 {m}^{2}$

$12.57 {m}^{2}$

subtract the area of the circle from the parallelogram

=

$60 {m }^{2} - 12.57 {m}^{2}$

=

$47.43 {m}^{2}$

Done