Answer:
Three angles of triangle are 45°,54° and 81° .
Step-by-step explanation:
Given the ratio of angles of triangle = 5:6:9.
Let the three angles of triangle be 5x, 6x and 9x.
We know the sum of angles of triangle = 180°
i.e 5x + 6x + 9x = 180°
or 20x = 180°
or x = 180° / 20
or x = 9°
Hence the three angles of triangles are:
First angle = 5x =5×9 = 45°
Second angle = 6x =6×9 = 54°
And third angle = 9x = 9×9 = 81°
