Consider the non-right triangle below. 19610800111.jpg Suppose that m\angle BCA=70^{\circ}, and that

meplasemamiuk

meplasemamiuk

Answered question

2021-11-22

Consider the non-right triangle below.

Suppose that mBCA=70, and that x=33cm and y=47cm What is the degree measure of ABC?

Answer & Explanation

Glenn Cooper

Glenn Cooper

Beginner2021-11-23Added 12 answers

Step 1
Using the cosine law,
AB=AC2+BC2(2ACBCcosBCA)
AB=472+332(24733cos70)
AB=2237.05
AB=47.29
Step 2
Using the cosine law,
ABC=cos1(BC2+AB2AC22×BC×AB)
ABC=cos1(0.3576)
ABC=69.04

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?