Question

2) The measure of angles of a triangle are yº (y +10) and(y-40). Find the measure of
each angle​

Answer 1

Answer:

y=70°

y+10=80°

y-40=30°

Hope it helps you

Step-by-step explanation:

$y + y + 10 + y - 40 = 180 \\ 3y - 30 = 180 \\ 3y = 180 + 30 \\ 3y = 210 \\ y = 210 \div 3 \\ y = 70 \: degree$

$y = 70 \: degree$

$y + 10 = 70 + 10 \\ y + 10 = 80 \: degree$

$y - 40 = 70 - 40 \\ y - 40 = 30 \: degree$

Answer 2

y + y + 10 + y - 40 = 180°

⇒ 3y - 30 = 180

⇒ 3y = 180 + 30

⇒ 3y = 210

⇒ y = 210/3

⇒ y = 70°

Measures of Each Angles :

y = 70°

y + 10 = 80°

y - 40 = 30°