How to do this? I don’t know how to find the answer please help me

20 cm

Step-by-step explanation:

Pythagoras theorem states that a² + b² = c². But what does this actually mean? First of all we need to recognise that it only works in right-angled triangle. If I put the values in you would a² + 15² = 25². So we have to solve for "a". A = DC

a² + 15² = 25²

→ Minus 15² from both sides to isolate a²

a² = 25² - 15²

→ Work out 25² - 15²

a² = 400

→ Square root both sides to isolate a

a = 20

dude thats to long figure it

step-by-step explanation:

ok so the answer to your question is simple as long as you look at the different dimensions that contain the exemplary letters that combined in the right order give you words that eventually within the 5th dimension will conform and give you the correct answer to your question. hope i , stop looking at this easily, look at it with a spectral view.

step-by-step explanation:

told you