2 years ago

Need help with this algebra question

Mathematics

1 answer:

slava [35]2 years ago

3 0

Answer:

Option 2

Step-by-step explanation:

1. Combine like terms

2. Then solve

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Zolol [24]

Answer:

The area of the shaded region is 125.664 square centimetre

Step-by-step explanation:

Area of the shaded region = area of the circle with radius 7 cm - area of the circle with radius 3 cm----------------(1)

Step 1: Finding the area of the circle with radius 7 cm

Area of the circle A = $\pi r^2$

On substituting the value of the radius, we get

Area of the circle A = $\pi(7)^2$

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Step 2: Finding the area of the circle with radius 3 cm

Area of the circle a = $\pi r^2$

On substituting the value of the radius, we get

Area of the circle a = $\pi (3)^2$

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Step 3: Finding the area of the shaded region

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2 years ago