Question

What is the angles. ……………….

Answer 1

A = 30

B = 60

C = 90

Explanation:

Ratio of 1:2:3 can be written as x + 2x + 3x, x being angle A (the smallest angle)

As the sum of all the angles of a triangle must be 180, this gives us the equation:

x + 2x + 3x = 180

6x = 180

x = 30

x = 30 = A

2x = 2(30) = 60 = B

3x = 3(30) = 90 = C

30 + 60 + 90 = 180