2 years ago

What is the value of X? Enter your answer in the box.

Mathematics

2 answers:

Basile [38]2 years ago

8 0

Answer:

x = 5

Step-by-step explanation:

in ΔABC , AB = BC , hence triangle is isosceles, thus

∠A = ∠C = 73° ( base angles are equal )

the sum of the 3 angles in a triangle = 180°

subtract the sum of the base angles from 180 for ∠B

∠B = 180° - (73 + 73)° = 34°

⇒ 6x + 4 = 34 ( subtract 4 from both sides )

6x = 30 ( divide both sides by 6 )

x = 5

morpeh [17]2 years ago

4 0

I got 2.17 but I'm not sure that's right.

$180 - (71 + 90) = (6x + 4)$

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