Question

Tommy is drawing a triangle with angles measuring 41° and 123°, and the included side measures 6 cm. What is the measure of the third angle of the triangle?

Answer 1

for every triangle, it's 3 angles always add up to 180°
let x be the missing angle measure

180=41+123+x
simplify
180=164+x
subtract 164 from each side
16=x
x=16

that means the third angle measure is 16°