Question

One of the angles of a triangle is equal to the sum of the other two angles.If the ratio of the other two angles is 4:5,find the angles of the triangle​

Answer 1

Answer:the answer is 90,50,40

Let angle 1 be 4x

Let angle 2 be 5x

Let angle 3 be 5x+4x=9x

=4x+5+9x=180°

=18x=180°

=x=180°÷18

=x=10

Angle 1=4x×10=40°

Angle 2=5×10=50

Angle 3=9×10=90

Step-by-step explanation: