Question

the three angles in a traingle are 5x, 6x and 7x. work out the size of the largest angle in the triangle

Answer 1

The largest angle in the triangle is 7x, since the three angles in a triangle add up to 180° and 5x + 6x + 7x = 180°.

Answer 2

the largest angle is 70

Explanation:

180 degrees in a triangle

180=5x+6x+7x

simplify

180=18x

x=10

7x=70

the largest angle is 70 degrees.