Triangle SAA

The triangle has one side long 23 m, and its two internal angles are 60°. Calculate the perimeter and area of the triangle.

Correct answer:

o =  69 m
S =  229.0637 m2

Step-by-step explanation:

a=23 m α=60  β=60  γ=180αβ=1806060=60   a=b=c  o = a+b+c  o=3 a=3 23=69 m
S=2a2 sinα=2a2 sin60° =2232 sin60° =2232 0.866025=229.064=229.0637 m2

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