PLEASE HELP (30 POINTS) If A is the center of the circle, then which statement explains how segment ED is related to segment FD? Circle A with inscribed triangle EFG; point D is on segment EF, point H is on segment GF, segments DA and HA are congruent, and angles EDA and GHA are right angles.

segment ED ≅ segment FD because segment EF is perpendicular to a radius of circle A.
segment ED ≅ segment FD because arc EF ≅ arc GF.
segment ED ≅ segment FD because the inscribed angles that create the segments are congruent.
segment ED ≅ segment FD because the tangents that create the segment EF share a common endpoint.

answer B

Step-by-step explanation:

segment EF ≅ segment GF because both segments are the same distance from the center of circle A

answer: sorry i can't you.

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