2. When. c is 21, what is the value of a? b =
3. What is the value of b that goes with this value of a?

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine

1. perpendicular

2. parallel

3. perpendicular

where's the diagram?

step-by-step explanation:

7/2

(decimal: 3.5)

welcome ; )

step-by-step explanation: