Answer: 10.9 m
So to find the missing side we can use the pythagorean formula to do this. It must be a right angle triangle if we want to use the formula. So we know two of the side lengths and that, that it has a right angle. Let's do it real quick! The formula is:
c^2=a^2+b^2 (c, the missing side, a is any side, b is the other side length)
So in this one we will find the missing side which is c . . . Place the formula!
c^2 = 7.7^2 + 7.7^2
c^2 = 59.29 + 59.29
c = square root of 118.58
c = 10.89 --> round to nearest tenth is 10.9
Brainliest pwease if I could help you! <3
