Question

Un = 8 cm.
quired area = (area of semicircle of dia. AD)
+ (area of semicircle of dia. AB)
- (area of semicircle of dia. BD)
(1 22 x6x6 +16*
+ x 22 x 2 x 2-4X22 x
(2*2*4
2
(396 +44 -176) m2
- 1127
(396 44 176)
- 7 * 7 7
= 3771 cm
Hence, the required area is 37.71 cm.
AB=BC & CD
OO
EXERCISE 20F
22
Use m = -
, unless stated otherwise.
NOTE
1. Find the area of a circle whose radius is
(1) 21 cm, (11) 3.5 m.
2. Find the area of a circle whose diameter is
(1) 28 cm, (11) 1.4 m.
3. The circumference of a circle is 264 cm. Find its area.​

Answer 1

Answer:

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Step-by-step explanation:

203w0e0303e037p7e7yudlhsssylhz

Answer 2

Answer:

I don't know the answer