In the given triangle the value of x° = 39°.
What is triangle?
" A triangle is defined as the two dimensional closed shape with three sides , three vertices and three angles enclosed in it."
Theorem used
In ΔABC,
∠A + ∠B + ∠C = 180°
According to the question,
In the given triangle,
∠A represents measure of 102°
∠B represents measure of 39°
∠C represents measure of x°
Substitute the value in the triangle theorem we get,
102° + 39° + x° = 180°
⇒141° + x° = 180°
⇒ x° = 180° - 141°
⇒ x° = 39°
Hence, in the given triangle the value of x° = 39°.
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