Question

Q. 3. The shape of a garden is rectangular in the middle
and semi circular at the ends as shown in the diagram. Find
the area and the perimeter of this garden (Length of rectangle
is 20 - (3.5 +3.5) meters).
7 m
20 m​

Answer 1

Step-by-step explanation:

this simple yan d it yourself

Answer 2

$\underline\bold\red{step \: by \: step \: explination}</h2><p></p><p></p><p>$

Total area of the garden = Area of the rectangular portion + The sum of the areas of the pair of semi-circles

$l.b + 2 \times \frac{1}{2}\pi {r}^{2}$

$= (13 \times 7) {m}^{2} +$

$(2 \times \frac{1}{2} \times \frac{22}{7} \times 3.5 \times 3.5) {m}^{2}$

$= (91 + 38.5) {m}^{2} = 129.5 {m}^{2}$

Perimeter of the garden =2× length of rectangular portion + circumference of the circle

$= (2 \times 13 + 2 \times \frac{22}{7} \times 3.5)m$

$= (26 + 22)m = 48m$