Question

I keep trying to use the Pythagorean Theorem to find the missing sides length but it comes to a -31 then an Error when square rooted

Answer 1

Diagonal of the left triangle = ((8)^2+(7)^2)^0.5= (113)^0.5
x =( 12^2 -(113)^0.5)^2))^0.5=( 144- 113)^0.5= (31)^0.5= 5.57


For ur working, ur mistake lies in the line : x^2+12^2=10.6^2
It shld be 12^2= x^2+10.6^2

Answer 2

To add on to what he said, remember that the hypotenuse (c in the Pythagorean Theorem) is ALWAYS the longest of a right triangle!