The total area of three rectangular faces of a triangular prism is 51 cm². the total surface area of the prism is 62 cm². find the area of each triangular face?

is only a line? i think so

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.  

σк тнє αиѕωєя ιѕ (α.)

нσρє ι ¢συℓ∂ нєℓρ υ

it is a horizontal line.