So than you check this graph so you see that the radius has a length of 4 units
from what result that thet x^2 +y^2 =4
so the choice 3rd is right sure
A=(a+b)*h*1/2=(20+8)*7*1/2=49 m2
V=A*H=49*2=98 m3
11.9
i just got it right on a quiz so yeah
The answer is B because a rational number is a number that can be expressed as a fraction and 1.425 can be written as 1425/1000