Answer: a. Area b. 4222.26
Answer:
17
Step-by-step explanation:
We can use this formula:
where x and y indicate the coordinates of the two points

I assume you meant to write 5^c = 125. The equivalent logarithmic expression for this would be ㏒₅125=c.
The answer is 30°.
Rule: All three sides must add up to 180°.
Since A=60 and the side vertical to the angle which is 90° then side C would be C=90° and that adds up to 150°, so you can conclude that angle B is 30°.
I hope I helped!