Question

please help me out ​

Answer 1

Answer:

3. Area of a circle = (22/7) × r²

Where r is the radius of the circle

here radius of circular garden is 14 cm

Area of circular garden = (22/7)×14×14

=616cm²

4.Area of parallelogram = Base × height

A.T.Q.

16=8 × height

height =2 cm

5. length of rectangle is 40m and breadth is 20m

perimeter of a rectangle =2( length + breadth)

=2(40+20)

2×60

120m

6. area of a square = (side)²

ATQ

121=side²

side = 11m

Hope it helps.

Answer 2

Answer:

3) The area of the circular garden is 616 $cm^{2}$

4) The height of the parallelogram is 2 cm

5) The perimeter of the rectangle is 120 m

6) The side of the square is 11 m

Step-by-step explanation:

3) The area of the circle = π$r^{2}$

Here 'r' is the radius of the circle

Given r = 14 cm

Area = π$r^{2}$

$=(\frac{22}{7} )14^{2}$

The area of a circular garden with a radius of 14 cm is 616 $cm^{2}$

4) The area of the parallelogram = b × h

Here 'b' is the breadth and 'h' is the height

Given the area = 16 $cm^{2}$ and b = 8 cm

h = $\frac{area}{b}$

  $=\frac{16}{8}$

The height of the parallelogram = 2 cm

5) The perimeter of the the rectangle = 2(l + b)

Given the lenght l = 40 and the breadth b = 20

Perimeter = 2(40 + 20) = 120 m

The perimeter of the rectangle is 120 m

6) The formula of the area of the square = $a^{2}$

Here a is the side of the square

Given the area of the square = 121 $cm^{2}$

 $a^{2}$ = 121 $cm^{2}$

a = 11 cm

The side of the square = 11 m