Answer:
≈ 30.63 cm²
Step-by-step explanation:
The shaded area is calculated by subtracting the area of the inner circle from the area of the outer circle.
outer circle has radius = 8 ÷ 2 = 4 and inner circle has radius = 5 ÷ 2 = 2.5
shaded area = πr₁² - πr₂² (r₁ is outer and r₂ is inner )
A = π (4² - 2.5²)
= π(16 - 6.25) = 9.75π ≈ 30.63 cm²
Answer:
x = 76/75
Step-by-step explanation:
97.45 • 0.18 = 17.54. 97.45 + 17.54 = 114.99. I think this is right.
If P is the circumcenter of ABC then
PA = PB = PC
6x - 28 = 38
6x = 66
x = 11
answer
x = 11
m<D = 90 degrees