Can somebody help me? Thank you!

AAS = AAS

Step-by-step explanation:

we look at the 3 aspects of the triangle that they give us to work with. there are two angles provided, and one side. so, we can see that it is AAS.

the diameter is 16 cm. are you a teacher?

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for