Question

Find the area enclosed by each of the following figures​

Answer 1

Answer:

384

Step-by-step explanation:

Lets divide the figure into 2 parts. One is a rectangle and the other one a trapezium.

20*15=300

(a+b/2)*h=84

300+84=384

Hope this helps

Answer 2

Answer:

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Step-by-step explanation:

The given shape contains a rectangle and a semi-circle.

∴

Area of rectanlge

=

l

×

b

=

(

10.2

×

1.5

)

c

m

2

=

15.3

c

m

2

Here, diameter of semi-circle = (10.2 - 3.9) cm = 6.3 cm

So, radius

=

d

i

a

m

e

t

e

r

2

=

6.3

2

=

3.15

c

m

∴

Area of semi-circle

=

1

2

π

r

2

=

22

7

×

1

2

×

3.15

×

3.15

=

15.59

c

m

2

∴

Total area = Area of rectangle + Area of semi-circle

=

15.3

+

15.59

=

30.89

c

m

2