The length of the arc of semi circle is 15 cm calculate the area of the semi circle ?

The area of the semi-circle is 35.8 cm².

Step-by-step explanation:

The length of the arc is given by:

  (1)

Where:

s: is the length of the arc of semi-circle = 15 cm

r: is the radius

θ: is the angle in radians    

Since we need to calculate the area of the semi-circle, the angle is:

From equation (1) we can find the radius:

Now, the area of the semi-circle is:              

Therefore, the area of the semi-circle is 35.8 cm².

I hope it helps you!                          

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right

median- 36f

mode - none

mean- 33.7 ~ 34f