Acellus
Find the measure of the arc.
с
D
А
146° E
B
MAC = [? ]°

The measure of arc AC length is 90 degrees

Step-by-step explanation:

Here, we want to get the measure of the arc AC

From what we have, the angle at the middle facing this arc is a right angle

A right angle is of the size 90. degrees

with respect to the diagram, the angle at the center is equal to the measure of the arc facing it

Thus, we can conclude here in this case that the measure of arc AC is 90 degrees

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,