Answer:

Step-by-step explanation:
Given
Sequence = Consecutive Odds

Required
The sum of the terms
A sequence of odd number has a difference of 2. So, the sequence is represented as:

Add up all terms in the sequence


Answer:
Step-by-step explanation:

Answer:
D
Step-by-step explanation:
At least about 20 points it can depend on the class but not really.

Hey mate,
Attachment 3 is a right angle because a right angle makes a straight line ( 90 degree angle)
that's why it's a right angle
<h3>plz mark me as brainliest </h3>