A square mirror has exactly half the area of the rectangular wall on which it is hung.

A square mirror has exactly half the area of the rectangular wall on which it is hung. If each side of the mirror is 34 inches and the width of the wall is 54 inches, what is the length of the wall, in inches?

Quiz

Answer/Solution

42.8

Steps/Work

Since the mirror is 42 inches in all sides, it must be a square. Area of a square is A=a^2; 34^2=1156.Area of rectangle is double of that 2 *1156=2312.Now A=lw and we need find w so A/l=w ; 2312/54= 42.8 Answer!
Answer is C

Geometry Calculator / Auto Solver

A square mirror has exactly half the area of the rectangular wall on which it is hung. If each side of the mirror is inches and the width of the wall is inches, what is the length of the wall, in inches?

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