hi8921 hi8921
  • 24-01-2022
  • Mathematics
contestada

Please help me with this question ​

Please help me with this question class=

Respuesta :

clarch19
clarch19 clarch19
  • 24-01-2022

Answer:

x = 18

Step-by-step explanation:

there is a right-angle indicator which means it measures 90°

we know the sum of the three interior angles in a triangle is 180°

therefore, we can write this equation:

2x + 3x + 90 = 180

combine 'like terms' to get:

5x + 90 = 180

subtract 90 from each side to get:

5x = 90

x = 90/5 or 18

Check:

2(18) + 3(18) + 90 should equal 180

36 + 54 + 90 should equal 180

90 + 90 = 180

180 = 180

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