7-1 Circumference
What is one of the formulas for Circumference?
2π r or π d
What is the area for a circle with a radius of 1
(use 3.14 for π )
3.14
If I am going from a drawing to real measurements do I multiply or divide the scale by the drawing?
Multiply
Find the Surface Area of a cylinder with a radius of 1 and a height of 1
(use 3.14 for π )
12.56
Find the Volume of a rectangular prism with a width of 4 a length of 4 and a height of 8
(Use 3.14 for π )
128
Find the Circumference of a circle with a diameter of 1 (Use 3.14 for π )
3.14
What is the formula for the area of a circle?
πr2
A drawing of a table has a length of 4 inches. The real table measures 8 ft. What is the scale that was used?
1:2 or multiply by 2
Find the SA of a cylinder with a Diameter of 4 and a height of 4
(Use 3.14 for π )
25.12 + 50.24 =
75.36
What is the formula for the Volume of a cylinder?
(Use B for your base)
V=Bh
Find the Circumference of a circle with a radius of 1
(use 3.14 for π )
6.28
Find the area of a circle with a diameter of 4
(use 3.14 for π )
12.56
What is the real length of a bike with a scale of 4 and a drawing with a length of 5
20
What is the formula for the Surface Area of a cylinder?
2π r2 + 2π rh
Find the volume of a cylinder with a height of 9 and a diameter of 6
(Use 3.14 for π )
254.34
Find the diameter of a circle with a circumference of 28.26 (use 3.14 for π )
9
What is the diameter of a circle with an area of 50.24
(use 3.14 for π )
8
Find the area of a real table if a drawing has a length of 4 in and a width of 6 in. The real table will be scaled up by 3
216 in2
Find the Surface Area of a open sided cylinder with a radius of 3 and a height of 3
(Use 3.14 for π )
28.26 + 56.52=
84.78
Find the height of a cylinder with a volume of 188.4 and a radius of 2. (Use 3.14 for π )
15