Find the arc length for a circle with diameter 10 inches and central angle 60 degrees. Round to the nearest tenth.

C. 5.2 cm

Step-by-step explanation:

Arc length formula:

where s = arc length

n = central angle of arc

r = radius of circle

diamter = d = 10 cm

r = d/2 = 10 cm/2 = 5 cm

n = 60 deg

5.2 cm

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,