8. For each figure, given below, find the area of the shaded region (ii) Eisb book
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Answer:
85
Step-by-step explanation:
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Answer:
Ginni Uni
Step-by-step explanation:
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ANSWER
Shaded area = Area ADBCLA+ Area EFGE+ Area BEGKCB
=
2
1
×π[(
2
10.5
)
2
−(
2
7
)
2
]+
2
1
π(
2
7
)
2
+
2
1
π[(
2
17.5
)
2
−(
2
7
)
2
]cm
2
=(
2
1
×
7
22
×
4
35
×
4
7
)+(
2
1
×
7
22
×
4
49
)+(
2
1
×
7
22
×
4
21
×
4
49
)cm
2
=(
16
385
+
4
77
×
16
1617
)cm
2
=(
16
2310
)cm
2
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