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If BC = 4.5, CD = 7.7, and AD = 16.7, find AB to the nearest tenth.

A. 2.1

B. 28.6

C. 9.8

D. 2.2

If BC = 4.5, CD = 7.7, and AD = 16.7, find AB to the nearest tenth. A. 2.1 B. 28.6 C-example-1
User Velocity
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7.6k points

2 Answers

5 votes
I think the answer is B not sure
User Qamil
by
7.3k points
3 votes
ANSWER


9.8


Step-by-step explanation

Triangle ABC is similar to triangle ADC,
therefore the corresponding sides sides are in the same proportion.



(AB)/(AD) = (BC)/(CD)



We substitute the values to obtain,



(AB)/(16.7) = (4.5)/(7.7)


We multiply through by

16.7

to get,


AB= (4.5)/(7.7) * 16.7

This simplifies to give us,


AB= 9.75940259402....

To the nearest tenth,


AB= 9.8

The correct answer is C
User Kishan Maurya
by
8.1k points

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