equations
What is the equation for the area of a triangle?
Correct Answer: Area = (b × h)/2
Find the circumference of a circle with a radius of 3 inches.
Correct Answer: 18.85 inches
what is the volume of a cube with a base length of 4 inches?
Correct Answer: 64in
If you double the length of all the edges of a cube, then the volume of that cube will also double.
True or False
Correct Answer: False
A sphere is cut in half.
What does the resulting cross section look like?
Correct Answer: Circle
What is the equation for the volume of a sphere?
volume = (4/3) * pi * r³
If you double the radius of a sphere, then the volume of the new sphere will be 8 times larger.
True or False
Correct Answer: True
A cylinder is layed on its side _ then cut in half.
What is the resulting shape?
Correct Answer: Circle
(1/2) · (a + b) · h
This equation is the area for what shape?
Trapezoid
What is the volume of a sphere with a radius of 6 inches?
correct answer: 904.8in^2
A can of soda is 2.4 inches tall and 1.25 inches in diameter.
What 2-dimensional shape would be formed by a vertical cross section of the can?
Correct answer: Rectangle
What's the equation for the Volume of a cylinder?
Volume = pi × r2 x h
Find the area of a trapezoid with the following coordinates
point A- (5,1)
point B- (8,1)
point C- (10, -4)
point D- (2, -4)
Correct answer: Area=27.5
if you cut a cone in half vertically what is the resulting crossection?
Correct answer: Triangle
What's the equation for the Volume of a cone?
Volume = 1/3pi × r2 x h
Find the Volume of a trapezoid with the following coordinates by rotating it around the Y-axis
point A- (5,1)
point B- (8,1)
point C- (10, -4)
point D- (2, -4)
Area of a cone- Volume = 1/3pi × r2 x h
Answer: V = 117.28
explanation-
you would find the whole cone by continuing the outer lines up into the center.
then you would find the volume "big cone" and subtract it from the entire cone to find your answer