Question

Please help! I will mark you as brainliest!

Answer 1

Answer:

116

Step-by-step explanation:

Area of Circle is $\pi r^{2}$.

There are two circles in this question. 1 is the large circle with radius 6.5cm and the smaller circle with radius of 2.3cm.

Area of shaded area = Area of large circle - area of small circle

∴

Area of shaded =$\pi 6.5^{2} - \pi 2.3^{2}$

Area of shaded $=116.113$

                          $= 116$ (3 significant figures)

Answer 2

Answer:

116 cm²

Step-by-step explanation:

The shaded area = outer area - inner area

outer area = πr² ( with r = 6.5 ), thus

outer area = π × 6.5² = 42.25π cm²

inner area = πr² ( with r = 2.3 ), thus

inner area = 5.29π cm²

Thus

shaded area = 42.25π - 5.29π = 36.96π ≈ 116 cm² (to 3 significant figures )