During a sale the cost of a laptop computer originally $900 was reduced by 30 percent once the sale ended the cost of the discounted computer was raised by 30 percent determine the new cost of the computer the answer is not $900

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

this would be 35. 35 + 5 = 40. you take the known constant and subtract by the answer of the equation and you get y.