Answered

20 raised to 2=H raised to 2 + 8 raised to 2

Sagot :

20² = 400
H² = H²
8² = 64
so the equation is 400=H²+64
transpose 64 to 400 so it becomes negative
400-64=336 so
336=H²
lol its not accurate . the answer is 18.33