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alex41 [277]
3 years ago
5

Directions: Solve for x. Please help

Mathematics
1 answer:
aksik [14]3 years ago
7 0

Answer:

Step-by-step explanation:

Since the whole right side of that triangle is equal to 28 and the lower portion is 21, then we know the upper portion is 7. Set up a proportion using those sides and the fact that the 2 triangles are similar:

\frac{7}{21} =\frac{x}{18} and cross multiply to get

21x = 126 and

x = 6

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