Question

in the picture find x​

Answer 1

Answer:

so let us take the missing angles of the ∆ as a and b

so we know that

6x + a + b = 180°

now we can conclude that a = b

because a = 180° - 9x

and b = 180° - 9x

and hence,

the ∆ is an isosceles triangle

because,

the base angles are equal

now,

6x + (180°-9x) + (180°-9x) = 180°

6x + 2(180°-9x) = 180°

6x + 360° - 18x = 180°

-12x = -180°

x = -180°/-12

= 15°

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