YEEEEEET

I guess i didn't have to help when you're here 

now that you know the other side is 8 simply do 8 * 1.8 = 14.4 

but remember since its a triangle you have to halve it which is 7.2

Use Pythagoras if its 90 degrees 

formula = a^2 + b^2 = c^2 

not sure about whether 8.2 is the longest side but this is what you do if it is 

8.2^2 - 1.8^2 = 64

then you squareroot 64 which is 8

now you can add them all together 8+8.2=1.8 =18

OMG after reading your solution i realised my result after first phrase should've been x^2 + 25x^2 - 110x -25 = 0 but i written -25x^2 for some reason  thx 

oops i typed this wrong in the calculator 

2root 3^2 should be 12 

12- 3 = 9 

sqrt 9 = 3

Use pythagoras since it has a right angle ma boi

the formula for that is a^2 + b^2 + c^2

therefore 2sqrt(3)^2 - sqrt(3)^2 = (the missing side length)^2

2sqrt(3)^2 = 6 and sqrt(3)^2 =3 

6- 3 = 2 

bu then you have to sqrt your answer which means you have sqrt 2 at the end 

i wanna know 1x1