Step-by-step explanation:
The volume of a cone can be derived by writing an expression that represents the volume of one cone within the cylinder.
the expression for the volume of a cylinder is
![volume-of-cylinder= \pi r^2h](https://tex.z-dn.net/?f=volume-of-cylinder%3D%20%5Cpi%20r%5E2h)
the volume of a cone is a part of the volume of a cylinder
![volume-of-cone= \frac{1}{3} \pi r^2h](https://tex.z-dn.net/?f=volume-of-cone%3D%20%5Cfrac%7B1%7D%7B3%7D%20%5Cpi%20r%5E2h)
Hence the volume of a cone can be derived by dividing the volume of a cylinder by 3
Answer:
x=20
3x= 3(20)=60
4x= 4(20)=80
Step-by-step explanation:
The angles CD is 90 degrees because the small square indicates
it. Angles AD are a straight angle, therefore all the other angles within A to D, must equal 180 degree. (straight line/angle=180 degrees).
so AB + 70+ 90= 180 degrees
AB= 180 -70-90
AB=20
x=20
3x= 3(20)=60
4x= 4(20)=80
Answer:
Triangle 1 : isosceles triangle
Triangle 2 : Right Triangle
Step-by-step explanation:
Answer:
Step-by-step explanation:
3/2 is the slope in y=mx+b format
b= y-intercept witch would be -4 sense it is subtracting not adding
m=slope witch is 3/2
x=x-axis