Answer:
because they allow us to make direct comparisons
Step-by-step explanation:
A. 314 sq cm
Explanation: pi•r^2
3.14 x 10^2
3.14 x 100 =314
8/2(2+2)=X
8/2(4)=X
4(4)=X
16=X
Your answer would be X=16
Answer:
306 inches
Step-by-step explanation:
80% = 0.8
170 inches × 80% = 170 × 0.8 = 136
The truck is 80% longer than the boat. 80% of the boat is 136.
So, the boat is 170 inches + 136 inches = 306 inches.