Question

one side of a triangle is produced and the exterior angles so formed is 120 degrees if the exterior opposite angles be in the ratio of 3 is to 5 find the number of each angle of the triangle answer

Answer 1

Answer:

Step-by-step explanation:

let the ratio be x

then 3 x and 5x

Sum of all angles of triangle is 180 therefore 3 X + 5 x + 60 equals to 180 now 8 x + 60 equal to 180

8 x = 180 - 60

8x equals to 120

x= 120/8

× = 15

put value of x in the ratios

5x = 5×15 = 75 degree

3x = 3×15 = 45 degree