Find the area of a triangle, one of its sides is 12 cm, and the adjacent angles are -30 ° and 75 °
| November 25, 2020 | education
Let’s say we have a triangle abc, ab = 12cm, angle abc = 75gr, angle you = 30g. Let us find the angle sun = 180- (75 + 30) = 75gr from this it follows that the triangle is isosceles and ab is equal to ac and equal to 12 cm.The area will be equal to 1/2 av * ac sin 30gr = 36cm squared.
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