Scale Factor
If the bottom of the triangle is 3 on the original and the bottom of the triangle is 6 on the scaled copy. what is the scale factor?
2
Using a scale of 1:10. My actual height is 60. What is my drawing height?
6
Using a scale of 1:50. In my drawing my bed is 4cm wide. How wide is the actual bed?
200cm
What is the area of a rectangle that is 15 by 4?
60
A rectangle is 8 by 5. Will the measurements 15 and 10 make a scaled copy? If yes, what is the scale factor?
No
If the bottom of the triangle is 6 on the original and the bottom of the triangle is 3 on the scaled copy. what is the scale factor?
1/2
Using a scale of 1:5. My actual dog is 46 tall. What is the drawing height?
9.2
Using a scale of 1:50. In my drawing my door is 10cm tall. How tall is the actual door?
500cm
A rectangle is 5 by 4. If the scale factor is 2, what is the new area? (Hint: find the new sides first then find area)
80.
A rectangle is 8 by 5. Will the measurements 9 and 6 make a scaled copy? If yes, what is the scale factor?
No! You can't add!
A rectangle is 2in by 4in. If the scale factor is 2.5, what are the new side lengths?
5 and 10
1.2
Using a scale of 1:50. In my drawing my Desk is 6cm by 5cm. How big is the actual desk?
300 by 250
A square is 4 by 4. If the scale factor is 3, what is the new area? (Hint: find the new sides first then find area)
144.
A rectangle is 8 by 5. Will the measurements 24 and 15 make a scaled copy? If yes, what is the scale factor?
Yes. 3.
A rectangle is 8 by 6. If the scale factor is 2, what are the new side lengths?
16 and 12
Using a scale of 1:40. The size of Texas is 400 by 800. What is the size in the scale drawing?
10 by 20
Using a scale of 1:50. In my drawing my entire room is 12cm by 11cm. How big is the actual room?
600 by 550
A rectangle is 3 by 5. If the scale factor is 4. What is the new area?
240
A rectangle is 8 by 5. Will the measurements 4 and 2.5 make a scaled copy? If yes, what is the scale factor?
Yes! 1/2!
A rectangle is 4 by 3. Draw the scaled copy if the scale factor is 20.
Drawn rectangle with sides 80 by 60.
Using a scale of 1:20. My map of texas is 10cm. What is the actual length? What is the size of the map if the scale changed to 1:50?
Actual= 200 new map=4
Using a scale of 1:20. In my drawing my pillow is 5cm. What is the actual length? What is the length of the drawing if the scale changed to 1:50?
Actual=100 new drawing=2
A rectangle is 5 by 10. If the scale factor is 5. What is the new area?
1250.
A rectangle is 7 by 4. Will the measurements 28 and 16 make a scaled copy? If yes, what is the scale factor?