evelynlyn evelynlyn
  • 02-02-2022
  • Mathematics
contestada

triangle angle sun theorem
what the value of y?
I will give brainlist

triangle angle sun theorem what the value of y I will give brainlist class=

Respuesta :

Hrishii
Hrishii Hrishii
  • 02-02-2022

Answer:

y = 7°

Step-by-step explanation:

By interior angle sum theorem of a triangle.

[tex]51 \degree + 87 \degree + 6y = 18 \degree \\ \\ \implies 138 \degree+ 6y = 18 0\degree \\ \\ \implies 6y = 180 \degree - 138 \degree \\ \implies 6y = 42 \degree \\ \\ \implies y = \frac{42 \degree}{6} \\ \\ \huge \red{\implies y =7 \degree} \\ \\ [/tex]

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