PSLE The perimeter of figure VWXYZ is (6
q + 15) cm. The perimeter of square VWXY is 24 cm.
- Find the perimeter of triangle VYZ in terms of q.
- The perimeter of figure VWXYZ is 63 cm. What is the value of q? Give your answer in cm.
(a)
Length of the square
= 24 ÷ 4
= 6 cm
Total lengths of VW, WX and XY
= 3 x 6
= 18 cm
Perimeter of triangle VYZ
= 6
q + 15 - 6 - 6
= (6
q + 3) cm
(b)
6
q + 15 = 63
6
q = 63 - 15
6
q = 48
q = 48 ÷ 6 = 8
Value of
q = 8 cm
Answer(s): (a) (6
q + 3) cm; (b) 8 cm