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caspab7
24.10.2019 •
Mathematics
Which pairs of rectangles are similar polygons? select each correct answer.
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Ответ:
length A/Length B =Width A/Width B
To know which pairs are similar, we plug in their values in the above formula:
Pair 1
169/1.3=130
49/0.7=70
130 ≠70
therefore the first pair is not similar
Pair 2
18.55/5.3=3.5
10.5/3.5=3
Pair 2 is not similar
Pair 3
120/24=5
60/12=5
this implies that pair 3 is similar
Pair 4
189/2.1=90
81/0.9=90
this implies that pair 4 is similar
Ответ:
5.5
7.5 =
h
23.5
7.5h = 129.25
h = 17.2
3
The flagpole is 17.2 feet long.