you'd use the pythagorean theorem.
a^2+b^2=c^2
a is the first leg, b is the second leg, and c is the third leg.
10^2+13^2=c^2
100+169=c^2
269=c^2
take the square root of both sides
16.4=c
16.4cm is your answer!
6 √3. Short leg is half the hypotenuse is 6 so x = long leg so x= short leg times √3
They are same side interior!! Not alternate, they’d be on opposite sides of the line
