Hey, can you guys please help me get the answer. And explain it to me so i know? Thank you.

x = 41

Step-by-step explanation:

Supplementary angles sum to 180°, thus

∠ 1 + ∠ 2 = 180 , substitute values

3x + 2x - 25 = 180 ( add 25 to both sides )

5x = 205 ( divide both sides by 5 )

x = 41

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc