Question

1. A rectangular lawn of side 10m, 5 m has a circular &
flower bed of Radius 2m in middle Find :-
a) The area of whole land
b) The area of flower bed
c) the area of land excluding the area of flower bed.
d) The circumference of flower bed
​

Answer 1

Answer:

(a)Area of whole land = l×b

= 10 m × 5 m

= 50 m......................... (1)

(b)area of flower bed =

$\pi {r}^{2}$

$= \frac{22}{7} \times 2 {}^{2}$

$= \frac{44}{7}$

$= 6.28 {m}^{2}$

(c)area of land after excluding flower bed's area=

total area - area of flower bed

$50 {m}^{2} - 6.28 {m}^{2}$

$43.72 {m}^{2}$

(d)

circumference of circle

$= 2\pi {r}^{2}$

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

$\frac{176}{7}$

$25.14 {m}^{2}$