Answers

2015-12-06T12:04:46+08:00
∠A= 70 degrees∠B= 35 degrees∠C= 75 degrees
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can i ask for the solution?? thanks !
Let x= ∠B
Let x = ∠B
2x = ∠A
5+2x = ∠C
2x+x+5+2x=180
5x=175
x=35
Then substitute it.
∠A= 2(35) 
= 70 degress
∠B= x 
=35 degrees
∠C= 5+2x
5+2(35)
=75 degrees 
Have a great day!
thanks!
  • Brainly User
2015-12-06T12:32:38+08:00
∠B: x
∠A: 2x
∠C: 2x + 5
Sum of the measures of interior angles of a triangle = 180°

Equation:
x + (2x) + (2x+5) = 180
5x + 5 = 180
5x =  180 - 5
5x/5 = 175/5
x = 35

Substitute 35 for x:
∠B = x = 35°
∠A = 2x = 2(35) = 70°
∠C = 2x + 5 = 2(35) + 5 = 70 + 5 = 75°

ANSWER:
∠A = 70°
∠B = 35°
∠C = 75°

Check:
70 ° + 35° + 75° = 180°
180° = 180°
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thanks for the help
You're welcome :-)