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
= 53 - 36
= 17
Length of the rectangle
= 26 + (4 x 17)
= 26 + 68
= 94
Area of the rectangular wall
= 94 x 53
= 4982 cm
2 (b)
Perimeter of the shaded part
= 53 + 53 + (94 - 17) + (94 - 17)
= 53 + 53 + 77 + 77
= 260 cm
Answer(s): (a) 4982 cm
2; (b) 260 cm