An=3n+3n
a1=3(1)+3(1)=6
a2=3(2)+3(2)=12
a3=3(3)+3(3)=18
a4=3(4)+3(4)=24
Hope u understand it.
Answer:
33 please brainliest
Step-by-step explanation:
Here you go. It’s rather simple once you get used to it. Before you get to high school you need to know this though.
Answer:

Step-by-step explanation:
We are given the following in the question:

We have to prove:

Proof:

we can write:

Hence, the two triangle are congruent by SAS congruency rule.

The attached image shows the two triangle.