Answer:
62.8318530718
Step-by-step explanation:
Answer:
80.95
Step-by-step explanation:
Percentage increase =
*100
=> (38-21)* 100/21 = 80.9523%
The answer round it to the nearest 100th = 80.95%
Square. Because there is 2 right angles there are only 4 sides all which are perpendicular