Explain how you would solve the problem below using PEMDAS. Explain what you
would do first, second, third, fourth and so on to solve. Use your PEMDAS vocabulary
and tell us exactly how you would solve this problem.
5- 4 = 2 + 7

First you would do subtract because you work left to right giving you 1=2+. Then you would add giving you 1 = 9. giving you 9 over 1 so the answer is 9. I think

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