Create a matrix with 3 rows and 4 columns. Every element in the first row should be 0, every element in the second row should be 1, and every element in the third row should be 2.

Step-by-step explanation:

The matrix should have

- A row with four horizontal zeros

- A row with 4 horizontal ones

- A row with 4 horizontal twos

Thus, it should have the following form

Always remember that the columns are vertical (just think about normal columns) and the rown are horizontal.

I hope that works for you!

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