The second one because Idk I’m just guessing lol it doesn’t look like it should be there though
Answer:
c = 12.5
Step-by-step explanation:
This is a right triangle so we can use the Pythagorean theorem (a^2 + b^2 = c^2)
lets say 10 = a and 7.5 = b (this is because they are the legs of the triangle and variables a and b represent the legs of the triangle)
plug into the Pythagorean theorem.
10^2 + 7.5^2 = c^2
simplify (here you just square 10 and 7.5)
100 + 56.25 = c^2
simplify
156.25 = c^2
simplify
(here you get the square root of 156.25 and c^2, the positive square root of 156.25 is 12.5 and the square root of c^2 is c)
12.5 = c
Okay so to round to a whole number there will be no decimal
this question will round down because the decimal is less than .5
therefor your answer is
615
how to do it and the answers are above
i hope this help you
if you don't understand, please comment ✔️✔️✔️
Answer:i can't see it post a better one
Step-by-step explanation: