Answer:
108
Step-by-step explanation:
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:
3812.5
Step-by-step explanation:
2500 x 3.5% = 87.5 x 15 = 1312.5 + 2500 = 3812.5
Not sure if your the same person but I had already done the work for this problem....
