15. Sheila has an eye-height of 5.4 feet and is standing 33 feet from a building. The angle of elevation from her line of sight to the top of the building is 71 degree How tall is the building? Round to the nearest tenth.

step-by-step explanation:

if u want da anser kill your teeser ifu hav wun

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

first one because it can't have a fraction in it

step-by-step explanation: