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3 years ago

Will Give Brainlyest!

Mathematics

1 answer:

Advocard [28]3 years ago

6 0

Answer:

c. Change the length of side CB to 8 feet

Step-by-step explanation:

If the figures are similar, the ratios should be the same

Take the side of the larger triangle over the same side of the smaller

PR PQ RQ

----------- = --------------------= ----------------

AC AB CB

7.5 5 10

----------- = --------------------= ----------------

6 4 9

7.5 /6 = 1.25

5/4 = 1.25

10/9 =1.1111(repeating)

The bases are not in the right ratio. RQ over CB = 1.25. Since RQ = 10 and the ratio is 1.25, we can solve for CB

10/CB = 1.25

Multiply by CB on each side

10 = 1.25CB

Divide by 1.25 on each side

10/1.25 = CB

8 =CB

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