3 years ago

What are the values of a and b?

Mathematics

2 answers:

svetlana [45]3 years ago

6 0

Answer:

Step-by-step explanation:

Both triangles are similar triangles!

Length 21 for the top triangle is similar to length 20 for the bottom triangle

Length 29 for the top is similar to b on the bottom.

Length 20 for the top is similar to a on the bottom.

Use the first ratio: 21/20 to find the proportionality constant.

Divide 29 by that constant to get b

Divide 20 by that constant to get a

You end up with b = 580/21 (= 27.61), and a = 400/21 (= 19.047)

Therefore A is the right answer.

Drupady [299]3 years ago

5 0

Step-by-step explanation:

c.....................

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