Can someone solve this for me using proofs?

So look at the first one like this: AB=BC which means its an isosceles triangle(search that for more details) and automatically has the 2 angles of equal measures.

The second one the same thing but reversed.(angles first)Sides opposite to the equal angles of a triangle are equal. Proof: In a triangle ABC, base angles are equal and we need to prove that AC = BC or ∆ABC is an isosceles triangle.

My advice search the web for a more mathematical explanation of the isosceles triangle

this might get deleted, sorry. it has to be an actual question. if you really wanted to give someone free points, ask a question like "why does the sky look blue, and the sun is yellow to our eyes? "

step-by-step explanation:

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8