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To find: To round side lengths to the nearest tenth and angles to the nearest degree.
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Answer to Problem 10PPS
In
So side AC= b= 19
Angle ∠BAC=∠A =
And Angle ∠BCA=∠C =
Explanation of Solution
Given information:
The length of two sides of triangle ABC and one angle.
AB= c = 12
BC=a=14
∠ABC=∠B=
Calculation:
To find the length of side AC, we use the cosine formula for any triangle:
Let AC=b
AB = c = 12
BC = a = 14
Also as we know that-
Since the sum of the angles of any triangle is
So
In triangle ABC
So side AC= b= 19
Angle ∠BAC=∠A =
And Angle ∠BCA=∠C =
Chapter 13 Solutions
Algebra 2
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