Please help :( i don’t know how to do this

105.5 degrees

Step-by-step explanation:

Quadrilaterals always equal 360 degrees total

You already have 101 degrees + 48 degrees = 149 degrees

So take the 149 degrees away from 360 degrees: Now you have 211 degrees

Angles 1 and 2 have the same angle, as indicated by their matching line

So divide 211 degrees by 2, which = 105.5 degrees

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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

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