1.

13, Fig. 15.12 shows two concentric circles withdiameter 100 cm and 80 cm. Find the areaof the shaded region. (Use t = 3.14)gramor aFin 15 12Fig. 15.13​

Answer»

Answer:

AREA of shaded portion

=π(r

2

2

−r

1

2

)

=3.14((50)

2

−(40)

2

)

=3.14×900

=2826 CM

3



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