Question

The angles of a triangle are in ratio 3:4:5 what is the degree of the smallest angle

Answer 1

total angle is 180 deg
3x + 4x + 5x = 180
x = 180/12
x = 15
smallest angle is 3x ehich is 3*15 = 45 deg

Answer 2

hey dear here is your answer

sum of 3 angles is 180

so let angle A = 3x
let Angle B = 4x
let angle C = 5 x

so 3x+4x+5x = 180
12x = 180
x = 180/12
x = 15

x= 15 substitute in angle A
3(15)= 45

x= 15 substitute in angle B
4(15) = 60

x = 15 substitute in angle C
5(15 )= 75

so the three angles of triangle are 45,60, 75

hope helps you