Question

Please I need help! I will mark you as brainliest!

Answer 1

Answer:

33%

Step-by-step explanation:

The area of a circle is $\pi r^{2}$ , where r is the radius. In this case, the area of the second largest circle is $\pi (3+4)^{2}$ (because the radius is 3 + 4 = 7) = 49$\pi$.

The area of the smallest circle is $\pi 4^{2}$ = 16$\pi$.

Now, the area of the shaded region is just the smallest circle's area subtracted from the second-largest circle's area:

49$\pi$ - 16$\pi$ = 33$\pi$

To find the percentage of the logo that is shaded, we need to find the total area, which is just the area of the largest circle: $\pi *(4 + 3 + 3)^{2} = \pi *10^{2} = 100\pi$

Now, we just divide 33$\pi$ by 100$\pi$ to get:

33$\pi$/100$\pi$ = 33/100 = 33%, which is our answer.

Answer 2

Answer:

33%

Step-by-step explanation:

Total

= pi × (4+3+3)² = 100pi cm²

Shaded

= pi × ((4+3)² - 4²) = 33pi cm²

Percentage of shaded:

(33pi/100pi)×100

= 33%