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Ratios of Perimeters and Areas

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perimeters and areas of similar figures
Volume of geometric shapes
Angles in polygons
Symmetry in figures
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to Theorem 10-7, if the scale factor of two similar figures is a to b, what is the ratio of their areas?
a to b
a cubed to b cubed
a squared to b squared
b to a
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example with trapezoids, what is the ratio of the perimeters of the smaller figure to the larger figure?
3 to 1
1 to 2
2 to 3
3 to 2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For two similar polygons with corresponding sides in the ratio 5 to 7, what is the ratio of their perimeters?
1 to 1
7 to 5
2 to 3
5 to 7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the area of a smaller regular pentagon is 27.5 cm² and the scale factor is 2 to 5, what is the approximate area of the larger pentagon?
200 cm²
100 cm²
150 cm²
171.9 cm²
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example with the city land plot, what is the expected number of bushels harvested next year if the scale factor is 1 to 2.5?
100 bushels
81.25 bushels
50 bushels
60 bushels
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For window glass with a scale factor of 3 to 5, if the smaller piece costs $2.50, how much should the larger piece cost?
$7.50
$6.94
$10.00
$5.00
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the scale factor of two similar triangles if their area ratio is 25 to 49?
5 to 7
7 to 5
2 to 3
1 to 1
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For two similar rectangles with areas 1875 ft² and 135 ft², what is the ratio of their perimeters?
5 radical 5 to 3
3 to 5
7 to 5
1 to 2
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