Answer:
90 degrees
angles are measured in degrees
the answer is A
Step-by-step explanation:
np
4917
<u>Given sequence: </u>
This is AP with common difference of 1, the first term of 42 and the last term of 107
<u>Number of terms:</u>
<u>Sum of the terms:</u>
<u>Answer is:</u> 4917
d
Step-by-step explanation:a