Hello,
you may not used what you are going to prove in a proof (la thèse)
Answer:
90
Step-by-step explanation:
120 - (120/4)
120 - 30 = 90
By using pythagoras theorem where
(Base)^2 +(perpedicular)^2 = (hypotenuse)^2
So,
(5)^2 +(12)^2 = (hypotenuse)^2
25 + 144 = (hypotenuse)^2
169 = (hypotenuse)^2
13 = hypotenuse
So, hypotenuse = 13
Add two 0's to 14.7 making 14.700
