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josebienka
27.11.2019 •
Mathematics
Given abcd ~ efgh, what is fg?
a.3.6
b.4.5
c.8
d.10
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Ответ:
B. 4.5
Step-by-step explanation:
Since the are similar quadrilaterals, their side lengths are in proportion to each other.
Look at the letter ordering, ABCD and EFGH, the represent corresponding points in the quadrilateral, so
BC and FG are the same corresponding side of the quadrilateral. For the first quadrilateral, A is the first letter, B is the second. In the second quadrilateral, E is the first letter, and F is the second. A corresponds to E, and B corresponds to F. The rest of the letters correspond the same way
as are CD and GH
So we have a proportion, "CD is to GH as BC is to FG"
We have values for all sides in our proportion except FG, so plug them in...
CD =4, GH = 6, BC = 3 and FG is unknown,
4/6 = 3/FG
Solve for FG by cross-multiplying (here FG is one variable)
4FG = 18
FG = 18/4
FG = 4.5
Ответ:
answer:
i don't know if this is right but i got 6.3 years.
Step-by-step explanation:
i did 8*6.3 and it is approximately 50 so i think that would be half if the population.