Question

Answer all of them please asap

Answer 1

Answer:

Answer of 1 question

Let Angle be x

Sum of all angles equals 180degree

11x+13x+12x = 180

36x = 180

X = 180 ÷ 36

x= 5

11x = 5 × 11 = 55

13x = 5×13= 65

12x = 12×5 = 60

55+65+60= 180

Answer 2

Answer:

Sum of Angles of a triangle = 180

So, 11 = 11x , 13 =13x. , 12 = 12x

because these three angles are in ratios

therefore, 11x + 13x + 12x = 180

= 36x =180

= x = 180/36

= x = 5

So, now we put value of x

11*5 = 55

13*5 = 75

12*5 = 60

then unit digit of the smallest no. is 55