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Gnesinka [82]
3 years ago
10

What Is The Length Of RT?

Mathematics
1 answer:
Ulleksa [173]3 years ago
6 0

Answer:

B

Step-by-step explanation:

AS is an angle bisector, thus the ratio of the sides of the triangle is equal to the ratio of the corresponding parts of RT, that is

\frac{SR}{ST} = \frac{RA}{TA}, substituting values

\frac{7.5}{9} = \frac{3.5}{x} ( cross- multiply )

7.5x = 31.5 ( divide both sides by 7.5 )

x = 4.2

Thus

RT = 3.5 + x = 3.5 + 4.2 = 7.7 → B

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