117k views
0 votes
A circle, with a diameter of 48 cm, is cut into 12 equal sectors. A square, with a side length of 41 cm, is cut into 16 equal squares. Which has the greatest area (and by how much)?

a) The circle has the greatest area, by 355π cm².

b) The square has the greatest area, by 82π cm².

c) The circle has the greatest area, by 82π cm².

d) The square has the greatest area, by 355π cm².

User James Poag
by
7.9k points

1 Answer

6 votes

Final answer:

After calculating the area of the circle (576π cm²) and the square (1681 cm²), it is evident that the circle has a greater area. The correct answer is a) The circle has the greatest area, by 355π cm².

Step-by-step explanation:

To determine which has the greater area, the circle or the square, we start by calculating the area of each shape using their respective formulas. For a circle, the area = πr², where r is the radius. For a square, the area = side length squared.

First, the circle has a diameter of 48 cm, so its radius r is half of that, which is 24 cm. The area of the circle is A = π(24 cm)² = 576π cm².

Next, the square has a side length of 41 cm, so its area A = (41 cm) x (41 cm) = 1681 cm².

Comparing these areas, the circle's area is 576π cm² and the square's area is 1681 cm². To make a direct comparison, we need to approximate π, which is about 3.1416. Therefore, the circle's area in decimal form is approximately 1809.56 cm².

Even without exact calculations, we can see that the square has a greater area than the circle, since 1681 cm² (the square) is less than 1809.56 cm² (the circle), and therefore answer a) is correct: The circle has the greatest area, by 355π cm².

User Cbeuker
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories