The second angle of a triangle is four times the first and the third is 5 degrees more than twice the first. Find the measures of the angles.

25

100

55

Step-by-step explanation:

Givens

Let the first angle = x

Let the second angle = 4x

Let the third angle = 2x + 5

All triangles have 180

Equation

x + 4x + 2x + 5 = 180

Solution

Begin by combining like terms

7x + 5 = 180

7x = 180 - 5

7x = 175

7x/7 = 175/7

x = 25

Answer

First angle = x    =          25

Second angle = 4x =    100

Third angle = 2x + 5 =    55

Total                               180

answer: 177/8

step-by-step explanation:

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