Solve each of the following triangles. If there are two

Carolyn Moore

Carolyn Moore

Answered question

2021-11-25

Solve each of the following triangles. If there are two triangles, solve both. Round angle measurements to one decimal place and side lengths to two decimal places. a=10, b=12, c=7
a=?
B=?
y=?

Answer & Explanation

Theirl1972

Theirl1972

Beginner2021-11-26Added 22 answers

Step 1
Given: a=10, b=12, c=7
α=cos1(b2+c2a22bc)
=cos1(93168)
Step 2
α=56.4
B=cos1(a2+c2b22ac)
=cos1(5140)
B=87.9
y=cos1(a2+b2c22ab)
=cos1(195240)
y=35.7
Answer:
α=56.4
B=87.9
y=35.7

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