The figure not drawn to scale shows Square J and Square K inside Square EFGH. The area of Square J is 9 m
2 and the area of Square EFGH is 81 m
2.
- Find the length of one side of Square K.
- Find the perimeter of the shaded region.
(a)
Length of Square J
= √9
= 3 m
Length of Square EFGH
= √81
= 9 m
Length of Square K
= 9 - 3
= 6 m
(b)
Perimeter of the shaded region
= (2 x 9) + (2 x 6)
= 18 + 12
= 30 m
Answer(s): (a) 9 m; (b) 30 m