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
= 54 - 35
= 19
Length of the rectangle
= 22 + (4 x 19)
= 22 + 76
= 98
Area of the rectangular wall
= 98 x 54
= 5292 cm
2 (b)
Perimeter of the shaded part
= 54 + 54 + (98 - 19) + (98 - 19)
= 54 + 54 + 79 + 79
= 266 cm
Answer(s): (a) 5292 cm
2; (b) 266 cm