Solve triangle ABC.

Question

∠A	=	1 °
∠B	=	2 °
∠C	=	3 °

Answer 1

Step 1:

The sides of a triangle are , and .

Solve the triangle by using Law of cosines

Formula: .

Substitte corresponding values in the formula.

.

Step 2:

Formula: .

Substitte corresponding values in the formula.

.

The sum of three angles in a triangle is .

.

Three angles of the triangle are , and .

Solution:

Three angles of the triangle are ,  and .