Question

A circle has a radius of 5 ft, and an arc of length 7 ft is made by the intersection of the circle with a central angle. Which

equation gives the measure of the central angle, o?
theta= 5/7
theta= 7/5
theta= 7 + 5
theta= 7 • 5

Answer 1

The answer to this question is

2. B) Theta = Seven-fifths

The answers to the entire test (except for the ones i got wrong and don't know) are

1. B) pi/4 * 180/pi

2. B) Theta = 7/5

3. B) r = 14/6

4. ? (I know that it is not B) 45 * 180/pi)

5. C) 60°

6. D) 4pi

7. B) 19.1 in.

8. D) 7.1 cm

9. C) 150°

10. ? (I know that it is not C) 3pi/10, pi/2, 2pi/3, 60°, 255°)

Explanation:

Just took it. Edg 2021. Hope this helps :) (smiley's name is George, George says hi)

Answer 2

A circle with radius of 5 feet would have a circumference of

(2*5*PI) = 31.4159265359

This would mean the 7 foot arc would be (7 / 31.4159265359 ) or 0.2228169203 of the circle.

0.2228169203 * 360 = 80.2140913183 degrees

80.2140913183 degrees = 1.4 radians

and 7/5 = 1.4

Therefore the answer is the second one 7 / 5

Explanation: