I think that it is the first line. I am not really sure what the question is asking so I may be wrong. Sorry if I can’t help
I think the correct answer is C. i hope this helps
Given:
One of the legs of a right triangle is 9 cm.
The area of the triangle is 225 cm².
To find:
The length of the other leg.
Solution:
The area of a triangle is

The area of a right triangle is

Let x be the length of other leg.




Therefore, the length of the other leg is 50 cm.
Answer: 3
Explanation: logarithm base 8 of 512 is 3
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