3 years ago

What is the length of FG?

Mathematics

1 answer:

shepuryov [24]3 years ago

5 0

9514 1404 393

Answer:

C. 3.6

Step-by-step explanation:

AC = FA + FC = 4+6 = 10

AC is the hypotenuse of right triangle ABC, which has leg BC = 8. Then the length of AB is given by the Pythagorean theorem as ...

AB² +BC² = AC²

AB = √(10² -8²) = 6

The side lengths of these similar triangles are proportional, so you have ...

FG/FC = AB/AC

FG = FC(AB/AC) = 6(6/10)

FG = 3.6

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