Find the area of the shaded region. oh=12.3 inches and ot=16.7 inches

The area of the dark region is found by determining the area of the larger circle and that of the smaller, and then subtracting the area of the larger from the area of the smaller.

This works out to π(16.7 in)^2 - π(12.3 in)^2, or

π(278.89 in^2 - 151.29 in^2) = 127.6π in^2 (answer)

D.

Step-by-step explanation:

We have been given an image of two concentric circles. We are asked to find the area of shaded region.

The area of shaded region would be area of bigger circle minus area of smaller circle.

Therefore, the area of shaded region is 400.7 square inches and option D is the correct choice.

step-by-step explanation:

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629