Perimeter and Area with Scale Factors
Authored by Anthony Clark
Mathematics
7th Grade
CCSS covered
Used 1+ times
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14 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
A triangle has an area of 6 square inches and a perimeter of 12 inches. Suppose it is dilated by some scale factor, and the area and perimeter of the image are calculated. Match each graph with the relationship it represents.
Tags
CCSS.7.G.A.1
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Tags
CCSS.7.G.A.1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If two similar figures have a perimeter ratio of 4:5, then what is the ratio of the area?
4:5
8:10
16:25
16:10
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If two similar figures have a perimeter ratio of 4:5, then what is the scale factor?
4:5
16:25
8:10
2:2.5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If two similar figures have an area ratio of 100:81, then what is their perimeter ratio?
100:81
10:9
50:40.5
5:9
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What do you have to do to the perimeter ratio or scale factor to get the area ratio?
divide by 2
square the ratio
square root the ratio
nothing, it is the same value
Tags
CCSS.7.G.A.1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True or false? Perimeter ratios and scale factors have the same value.
true
false
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