Question

One angle of a triangle is 60°.The other two angles are in the ratio of 5:7 find the two 2 angles

Answer 1

Answer:

Step-by-step explanation:

let a and b be the other two angles

a + b = 180 - 60

a + b = 120

a/b = 5/7

a/120 - a = 5/7

7a = 600 - 5a

12a = 600

a = 50

a + b = 120

b = 70

Answer 2

Answer:

50 and 70

Step-by-step explanation:

we know that the sum of angles in a triangle is 180

now let us consider the angles in ratio to be 5*x and 7*x

so , 5*x+7x+60=180

12*x=180-60=120

x=10

therefore the angles will be 5*x=5*10=50  and 7*x=7*10=70