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100
What is the area of the image provided?
Area = 3.75 inches
Area = length * width
Area = 3 * 1.25
100
How do we find the area?
Length x width
100
What will happen to an image if there's a scale factor of 1/2?
The image will decrease because the scale factor is less than 1.
100
How do we find the perimeter?
Add up all of the sides
100
What will happen to an image if there's a scale factor of 2 applied?
The image will increase because the scale factor is more than 1.
200
Using the 1 inch = 10 meters, what would be the actual height, in meters?
270 meters
27 * 10 = 270
200
Find the missing side length.
Y is equal to 2
Y / 7 = 6 / 21
Cross multiply 7*6 = 42
21*y = 21y
42 divided by 21y will give you 2 = y
200
A van is 5 meters long in real life. A scale drawing uses the scale of 4cm : 1 meter. How long should the van be on the scale drawing?
20
5*4 = 20
200
What is the area of the image prior to the scale factor?
Area = 7.7
Area = l*w which means 2.2 * 3.5
200
FREE POINTS :)
You're welcome!
300
Solve for x.
X is equal to 8
3/6 = 4/x
Cross multiply
6*4 = 24
3*x = 3x
24 divided by 3 = 8
300
What would the new coordinates be if letter D had a scale factor of 2?
(6,4)
The original D coordinate is (3,2) so increasing by a scale factor of 2 would produce 3*2 = 6 & 2*2 = 4
300
Using the following image, what is the slope of RST?
Rise over run = 3/6 which simplifies to 1/2
300
Find the slope of the bigger triangle.
Slope = 4/6 = 2/3
Rise over run. Rise is 4 and the run is 6.
300
Using the following image, what is the slope of PQR?
Rise over run = 1/2
400
Find the slope of the smaller triangle.
Slope = 2/3
Rise over run. Rise is 2 and the run is 3
400
Find the missing length of y.
Y is equal to 10
3/6 = 5/y
Cross multiply
6*5 = 30
3*y = 3y
30 divided by 3 = 10
400
What is the perimeter of the following image?
Perimeter = 8.5
Perimeter means add up all the sides.
1.25 + 1.25 + 3 + 3 = 8.5
400
What would be the missing height?
21.25ft
2in / 5ft = 8.5in / x
Cross multiply
8.5 * 5 = 42.5
42.5 divided by 2 = 21.25
400
What would the new coordinates be if letter B had a scale factor of 2 applied?
(2, 8)
Original coordinates were (1,4) so 1*2 = 2 & 4*2 = 8
500
Find the area of the square provided if 1cm = 8m
The area would be 640
5*8 = 40
2*8 = 16
40 * 16 = 640
500
What is the perimeter of the image if there's a scale factor of 1/2 applied?
6.75 inches
Perimeter means add up all the sides.
1.25 * 1/2 = 1.875
3 * 1/2 = 1.5
1.875 + 1.875 + 1.5 + 1.5 = 6.75
500
Using the following image, find the perimeter if 1cm = 8m
112 because 5*8=40 and 2*8=16 so 40+40+16+16=112
500
What is the area of the image provided with a scale factor of 3?
33.75 inches
Area = length * width
3*3 = 9
3 * 1.25 = 3.75
9 * 3.75 = 33.75
500
What would the new coordinates be if letter D had a scale factor of 1/2?
The new coordinates would be (1.5, 1)
The original D coordinate is (3,2) so applying a scale factor of 1/2 would produce 3*1/2 = 1.5 & 2*1/2 = 1