Circumference
Find the circumference of a circle that has a diameter of 10.
C = 31.4
Find the area of a circle that has a radius of 10.
A = 314
What is the scale factor for the ratio 2:4?
2
I am using a microscope to view a leaf cell. The scale is 1mm:10inches. If the cell is 2mm how big is the cell in the microscope? Don't forget your units!
20 inches
I am reorganizing my bedroom so I decided to make a scaled blueprint on a piece of paper. The blueprint scale is 1in:5ft. If my room is 25 feet wide, how wide will the room be on the blueprint?
5 inches
Find the circumference of a circle that has a diameter of 8.
C = 25.12
Find the area of a circle that has a radius of 5.
A = 78.5
What is the scale factor of the ratio 6 to 60?
10
I am building a dollhouse replica of my house. The house to dollhouse scale is 15 feet to 3 inches. If my house is 90 ft wide, how wide will my dollhouse be? Don't forget your units!
18 inches
Ms. Kreun has an assignment to make a scale drawing of an bug. She wants us to use the scale of 1cm:5in for real life to drawing. If I my piece of paper is 30in long, what is the longest my bug can be? Don't forget your units!
6cm
Find the circumference of a circle that has a radius of 5.
C = 31.4
Find the area of a circle that has a diameter of 20.
A = 314
What is the scale factor of 6:2?
1/3
I am using 1/2 inch pieces of wood to construct a picture frame. If I need 12 pieces of wood to construct 3 picture frames, how many would I need to build 8?
32
The scale for a blueprint of a microchip is 1in:0.25cm. If the microchip is 3.5cm wide, how wide is the blueprint? Don't forget your units!
14in
FInd the circumference of a circle that has a radius of 6.
C = 37.68
Find the area of a circle that has a radius of 9.
A = 254.34
What is the scale factor of 144 to 12?
1/12
I am wanting to print a poster for my parents from a 4in x 6in picture. The picture to poster scale factor is 3. What are the final measurements of the poster?
12in x 18in
4cm x 8cm
Find the circumference of a circle that has radius of 3.25.
C = 20.41
Find the area of a circle that has a radius of 2.5.
A = 19.625
When I blow a bubble with bubble gum the sphere expands by a scale factor of 1.5. If my bubble is 32.5mm wide and 24mm tall to start, how big does it expand?
48.75mm x 36mm
I'm crafting a hot air balloon to replicate my cat. My cat is 7.25in long and 2.75in wide, the scale for the hot air balloon is 24ft:0.25in. What are the dimensions of the hot air balloon?
696ft x 264ft