How do i solve: A Triangle has angles of ... Write an Equation that enables you to find the value of #x# and determine the size of each angle?

A Triangle has angles of#(2x-10)°,(5x+5)° and (3x)°#

Write an Equation that enables you to find the value of #x# and determine the size of each angle

1 Answer
Isla
Jun 14, 2018

#2x-10 + 5x+5 + 3x = 180#

Explanation:

All angles in a triangle add up to 180 degrees
So all the angles added together must equal 180
You can then work the equation out by adding all like terms so you are left with
#10x -5 = 180#
You can then take the five over too the other side where it becomes positive so:
#10x = 185#
and then take the ten over to the other side where it divides
#x = 18.5#
Then replace #x# in your original angles to figure out each individual angle

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