To find: To round side lengths to the nearest tenth and angles to the nearest degree.
Answer to Problem 14PPS
side AB= c= 8.9
Angle ∠ABC=∠B =
And Angle ∠BAC=∠A =
Explanation of Solution
Given information:
The length of two sides of
BC= a = 9
AC=b=2
∠BCA=∠C=
Calculation:
To find the length of side BC= a , we use the cosine formula for any triangle:
Also as we know that-
Since the sum of the angles of any triangle is
So
In triangle ABC
So side AB= c= 8.9
Angle ∠ABC=∠B =
And Angle ∠BAC=∠A =
Chapter 13 Solutions
Algebra 2
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