A skate shop owner ordered 60 skateboards from the manufacturer out of the 60 boards that were ordered 18 were long boards he wants to know what percent of his order was longboards

is it 35

step-by-step explanation:

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

c

-by-step explanation:

it would be c

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.