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11 questions
The length of an arc is 18cm and the radius of the circle is 6cm. What is the radian measure of the central angle?
3 radian
2 radian
4 radian
2π radian
A central angle measure 4.5 radians and has an arc of 35 inches. What is the radius of the circle?
7.78 inches
8.21 inches
157.5 inches
7 inches
12π cm
27π cm
12 cm
27 cm
A circle has radius 12 inches. A central angle intercepts an arc of length 36 inches. What is the radian measure of the central angle?
3 radian
2 radian
6 radian
9 radian
Find the arc length.
3π/4 ft
39π/4 ft
13π/4 ft
4π/13 ft
Find the arc length
7 cm
28π cm
7π cm
28 cm
Find the arc length
12π cm
15π cm
39.375 cm
14π cm
Find arc length
114π/5 ft
2850 ft
95π/6 ft
150π/19 ft
Arc Length Formula:
Radius×Radian
Radius×Degree
Radius×Radius
Radian×Radian
The diameter of a circle is 8 centimeters. A central angle of the circle intercepts an arc of 12 centimeters. What is the radian measure of the angle?
3
4
8π
3/2
What is the approximate length of the arc subtended by an angle of 4π/3 radians on a circle with a radius of 6.00 meters?
12.57 meters
14.14 meters
25.13 meters
28.27 meters
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