109k views
2 votes
Calculator The area of this circle is 96 m² What is the area of a 30° sector of this circle? 4π m² 8π m² 9π m² 16π m² ​

User Hawkett
by
8.2k points

1 Answer

0 votes

Final answer:

The area of a 30° sector of a circle with an area of 96 m² is 8 m². When expressed in terms of π, the area of the sector is 8π m².

Step-by-step explanation:

The area of a 30° sector of a circle can be found by calculating the fraction of the circle's total area that the sector represents. Since a circle has 360°, a 30° sector covers ⅓ of the whole circle.

Given the circle's total area is 96 m², you would calculate the area of the sector as (30°/360°) × 96 m² = ⅓ × 96 m². Simplifying that gives you 8 m².

However, none of the answer options provided are shown in raw square meters; they are provided in terms of π, where the area of the circle is πr².

So we can express 96 m² in terms of π by setting πr² = 96 m², and solving for r² gives us r² = 96/π.

Now, for the sector, (30°/360°) × (πr²) will give us the area of the sector in terms of π, and since r² = 96/π,

the calculation becomes (1/12) × 96 = 8 m² or 8π m² when expressed using π.

User Guilherme Martin
by
8.1k points