are the same shape and the same angle measurements.
100
What is 25% of 120?
30
100
What are corresponding angles?
Angles that have the same relative position in similar figures. In similar figures, corresponding angles are congruent.
100
Triangle ABC has side lengths of 3,4,5. What is the scale factor used if the sides of the new image DEF are 9,12,15
The scale factor is 300% or 3
100
A triangle has side lengths that measure 4 cm, 6 cm, and 8 cm. A similar triangle exists and has a scale factor of 3. What are the measures of the new side lengths?
12cm, 18cm, and 24 cm
200
When you enlarge or reduce a figure, what features change?
side lengths, perimeter, area
200
What is 120% of 80?
96
200
Triangle ABC has side lengths of 6, 10, 12. After a scale factor was used the side lengths are 18, ?, ?. What are the two side lengths, and what was the scale factor used?
30, 36.
Scale factor of 3 was used.
200
Triangle ABC has side lengths of 6, 4, 8. The newly created image has side lengths of 3, 2, 4 - what is the scale factor used?
50%
200
What are three properties of similar images?
Similar figures have the same shape, corresponding angles of equal measure and the corresponding sides are proportional. (Same shape, different size)
300
Triangle ABC has angle measurements of 48, 62, 70 respectively. What will be the angle measurement of angle E in similar triangle DEF?
62 degrees.
300
What is 70% of 150?
90
300
Triangle ABC has side lengths of 4, ?, 9. The side lengths of triangle DEF are ?, 12, 36. Find the missing side lengths and the scale factor used.
ABC 4,3, 9
DEF 16, 12, 36
Scale Factor: 4
300
A scale factor of 400% was used to create an image. how mnay times bigger is the perimeter?
The perimeter is 4 times bigger.
300
In a school there are six boys for every three girls. If there are 462 boys in the school, how many girls are there?
231 girls
400
Are the images on the board similar figures?
No, the scale factor is not the same causing the angle measurements to change.
400
Find 35% of 80.
28
400
What are corresponding sides? Draw and example.
Sides that have the same relative position in similar figures. In similar figures, corresponding sides are proportional.
400
A scale factor of 3 was used when creating a new image, how many times bigger is the area of the new image?
9 times bigger.
400
What is scale factor?
The number used to multiply the lengths of a figure to stretch or shrink it to a similar image.
500
What does corresponding mean?
The same location in a similar figure.
500
What is 27% of 80?
21.6
500
What are equivalent ratios?
Ratios whose fraction representations are equivalent. For instance, the ratios 3 to 4 and 6 to 8 are equivalent because 3/4=6/8.
500
What happens when a scale factor of 100% is applied to a figure?
Nothing, it remains the same.
500
What is a ratio?
A comparison of two quantities expressed with a phrase such as 'the ratio of 3 to 5' which means '3 for every 5.' Written as a fraction 3/5
or with the notation 3 : 5.