17-9=8
3x2=6
8x6=48
48/2=24
24
Answer:
<u>161.5 cm²</u>
Step-by-step explanation:
Finding the remaining area :
- Area (rectangle) - Area (2 equal semicircles)
- Area (rectangle) - Area (circle) [Because 2 equal semicircles form a circle of the same radius]
- 24 × 10 - 3.14 x 25
- 240 - 78.5
- <u>161.5 cm²</u>
Here is the set up:
Let p = percent of change
(72 - 14)/72 = p/100
Solve for p.