Please help me iam so confused , help please?

the value of x = 45°

Step-by-step explanation:

here's the solution : -

the given figure is a triangle,

we know that Exterior angle of a triangle is sum of two opposite interior angles,

so,

=》

=》

=》

so, the value of Angle x = 45°

angle addition postulate

2x=56

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