The area of the figure below is 9 ft. What is the
height of the triangle?

4 ft

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh

9 = 1/2 (4.5)h

9 =2.25 h

Divide each side by 2.25

9/2.25 = 2.25h/2.25

4 =h

we know that

1) the inscribed angle measures half of the arc it comprises.

so

m∠dgf= > expression

2) the opposite angles in an inscribed quadrilateral are supplementary angles

so

m∠dgf=

m∠dgf=°

substitute in the expression to find the value of arc ef

therefore

the answer is

the measure of the arc ef is