Answer:
The answer is 20 feet.........
Quadrilateral is the four-sided polygon.
Answer=C
The first step in estimating is to round the numbers into simpler numbers so that we can easily do the math in our head...
312.21 becomes 300
59.113 becomes 60
300÷60=5
Answer=C
Add all the numbers together:
100+50= 150
150+25= 175
175+12.5= 187.5
187.5 is the sum.
I hope this helps!