A square's sidelengths measure 4 inches. An image is created having sidelengths of 16 inches. What scale factor was applied?
What is 4.
100
Use the shadow method:
Height of Amy's brother = ?
Length of Amy's brother's shadow = 12 ft.
Height of Amy = 3 ft.
Length of Amy's shadow = 6 ft.
What is 6 feet. (SF = 2)
100
(5x, 8y)
What is 5x wider and 8x taller.
100
Original (x, y)
Image (5x, 5y)
What is yes, similar. (Same SF applied)
100
What is the perimeter of a square with sidelengths measuring 20 ft?
What is 80 ft.
200
What copier size factor was used to create an image that is three times larger?
What is 300%
200
Use the mirror method:
Height of bookshelf = ?
Distance bookshelf is from mirror = 300 cm.
Height of Jake = 120 cm.
Distance Jake is from mirror = 100 cm.
What is 360 cm. (SF = 3)
200
(32x, 0.5y)
What is 32x wider and 0.5x as tall.
200
Original (x, y)
Image (12x, 11y)
What is no, not similar. (Different SF)
200
What is the area to a rectangle with a width of 12 cm and a length of 8 cm?
What is 96 sq. cm.
300
An original rectangle measures 9 in. x 14 in. An image measures 117 in. x 182 in. What scale factor was applied?
What is 13.
300
Solve using the shadow method:
Height of park bench = ?
Shadow of park bench = 6 ft.
Height of tree = 54 ft.
Shadow of tree = 108 ft.
What is 3 feet. (SF = 18)
300
(27x + 2, 6y)
What is 27x wider, moves 2 units to the right, and 6x taller.
300
Compare a right triangle with a base of 7 cm and a height of 9 cm to another right triangle with a base of 42 and a height of 54 cm.
What is yes, similar figures by a SF of 6.
300
How much greater is the perimeter of an image if the scale factor is 7?
What is 7x greater.
400
A triangle's legs measure 224 cm. and 280 cm. An image is created and it's legs measure 32 cm. and 40 cm. What scale factor was applied to create the image?
What is 1/7.
400
Use the shadow method:
Height of tree = ?
Length of tree's shadow = 102 ft.
Height of Eric = 4.5 ft.
Length of Eric's shadow = 6 ft.Use the mirror method:
What is 76.5 ft. (SF = 17)
400
(10x - 55, 78y - 30)
What is 10x wider, moves 55 units left, 78x taller, and moves 30 units down.
400
A rectangle with a length of 16 in. and a width of 18 in. compared to a rectangle with a length of 128 in. and a width of 162 in.
What is no, not similar. [Different SF applied, (8x, 9y)]
400
What is the area of a triangle with a base of 18 cm and a height of 21 cm?
What is 189 sq. cm.
500
What copier size factor was used on a rectangle with a width of 85 in. and a length of 105 in., if the image has a width of 17 in. and a length of 21 in.?
What is 20%. (SF = 1/5)
500
Height of wall = ?
Distance wall is from mirror = 66 in.
Height of deer = 58 in.
Distance deer is from mirror = 12 in.
What is 319 in. tall. (SF of 5.5)
500
(65x + 48, 0.3y - 18)
What is 65x wider, moves 48 units to the right, 0.3x taller, and moves 18 units down.
500
A triangle with a base of 90 m. and a height of 120 m compared to a triangle with a base of 6 m. and a height of 15 m.
What is no, not similar. (1/15x, 1/8y)
500
How much greater is the area of a figure if the scale factor is 1/6?