all you have to do is add up all the sides and your answer will be 21 cm
Answer:
the first one in the picture
Step-by-step explanation:
8x8x8x8=4096
9x9x9x9=6561
4096x6561=26873856
72x72x72x72=26873856
You need 12 square roots of 1764 ?
<span>Why not find the square root of 1764 first (it's 42) and then take 12 of those ?
Hope this helps!</span>
(x + 5)^2 + (x/2 + 6)^2 = (30)^2
Take it from here.
It is 17 if you do the math and do the multiples of 187 and 578
