Volume
V = L x W X H
How do you find the area of a circle?
A = 3.14 x r squared
Sorry I couldn't find the pi sign.
What is surface area?
Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape.
Define radius...
Radius is a straight line from the centre to the circumference of a circle or sphere.
V = l x w x h
V = 10 x 5 x 2
V = 100 cm cubed (3)
How do you find the circumference of a circle? Hint... There are 2 formulas.
C = 2 x 3.14 x r
or
C = 3.14 x d
Find the surface area. Go to page 1 on the google doc.
SA = 318 cm²
Define diameter..
Diameter is a straight line passing from side to side through the centre of a body or figure, especially a circle or sphere.
A rectangular prism has the dimensions of 6 m by 7 m by 8 m. What is the volume?
V = l x w x h
V = 6 x 7 x 8
V = 336 m cubed (or 3)
What does circumference mean?
It means the outside or perimeter of the circle.
Find the surface area. Go to page 2 on the google doc.
SA = 29.6 in²
The radius of a circle is 6cm. What is the diameter?
D= 12cm
D = 2 x r
D = 2 x 6
D = 12 cm
What is the length of the edge of a cube that has a volume of 216 cm cubed.
V = l x w x h
V = 6 x 6 x 6 = 216 cm cubed
Length = 6 cm
A circle has a radius of 10 cm. Find the area.
A = 3.14 x r squared(or2)
A = 3.14 x 10 squared
A = 3.14 x 100
A = 314 cm squared
Find the surface area. Go to page 3 on the google doc.
SA = 240.2 in²
If the diameter is 20 m, then what is the radius?
Since the radius is half the diameter, so 10/2 = 10.
A cube has a length of 5 cm. What is the volume of a cube?
Remember all the lengths are the same so...
V= l x w x h
V = 5 x 5 x 5
V = 125 cm cubed
A circle has a diameter of 6 m. Find the circumference.
C = 3.14 x d
C = 3.14 x 6
C = 18.84 m
Find the surface area. Go to page 4 on the google doc.
SA = 236 cm²
1 circumference of a circle equals ____ diameters.
3.14
It takes 3.14 diameters to equal one circumference for any circle.