122k views
4 votes
What is the length of AB¯¯¯¯¯, to the nearest tenth of a meter?

4.4

6.5

8.6

8.9

What is the length of AB¯¯¯¯¯, to the nearest tenth of a meter? 4.4 6.5 8.6 8.9-example-1
User Onur Topal
by
8.2k points

2 Answers

1 vote
8.6 is the answer to this question
User Yogesh Wadhwa
by
7.6k points
2 votes

To find the length of AB, we have to se law of cosine, which is


AB^2 = AC^2 + BC^2 -2(AC)(BC) cos C

Substituting the given values of AC, BC and angle C


image


image

Taking square root on both sides


AB = 8.6

Therefore the correct option is the third option .

User Eboubaker
by
7.7k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories