Question

Two angles of tringles ara
5π/9 & 5π/8 find the measure of thiral angle in radion and also in degree​

Answer 1

Answer:

we know that sum three angles of a triangle is always equals to π

so we can write

let the third angle be x (radian)

5π/9+5π/18+x = π

x=π-15π/18

x=3π/18 or π/6

and if we convert this into degree we have to put π=180°

x=180°/6=30°

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