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Widths of two similar rectangles are 21ft and 18ft. What is the ratio of the perimeter? Of the areas?

Widths of two similar rectangles are 21ft and 18ft. What is the ratio of the perimeter? Of the areas?
asked 209k views
3 votes
Widths of two similar rectangles are 21ft and 18ft. What is the ratio of the perimeter? Of the areas?

asked
User Kosuke Ogawa
by
9.1k points

1 Answer

4 votes
Ratio of perimeters is a : b:

21:18

Which reduces to: 7:6

Ratio of areas is a^2 : b^
2:

"7 ^2: 6^2"

Which simplifies to: 49:16


The answer is 7:6 and 49:36
answered
User Jimmy Johnson
by
7.8k points
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