An arch of a bridge over a highway is semi-elliptical in shape and 42 ft. across. the highest point of the arch is 14 feet above the highway. what is the maximum height, to the nearest inch, of a truck 8ft wide that can fit under the arch?

or

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

step-by-step explanation:

your answer is a

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64