You are correct with that answer
you're given the pythagorean theorem, which is a^2 + b^2 = c^2.
what you're trying to find is ?, which is the number under the radical.
let's pretend one leg is a and the other is b.
a = 9
b = 10
so let's plug it into the equation. we get 9^2 + 10^2 = c^2
so that equals 81 + 100 = c^2
181 = c^2
so c will equal the square root of 181. therefore, ? = 181.
hope i helped! good luck.
Hi!
1. Your answer should be the first option. (It looks the best to me)
2. it is the last option because it's the only one that's identical to the original picture.
3. It should be the third option since there are 10cm on the top of the shape.
4. a total of 39
Hope that helps, good luck! :)
Answer:
a c
Step-by-step explanation:
