Five identical square tiles were pasted onto a rectangular wall shown .
- What is the area of the rectangular wall?
- What is the perimeter of the shaded part?
(a)
Length of each square tile
= 48 - 32
= 16
Length of the rectangle
= 27 + (4 x 16)
= 27 + 64
= 91
Area of the rectangular wall
= 91 x 48
= 4368 cm
2 (b)
Perimeter of the shaded part
= 48 + 48 + (91 - 16) + (91 - 16)
= 48 + 48 + 75 + 75
= 246 cm
Answer(s): (a) 4368 cm
2; (b) 246 cm