PSLE The perimeter of figure VWXYZ is (4
h + 17) cm. The perimeter of square VWXY is 8 cm.
- Find the perimeter of triangle VYZ in terms of h.
- The perimeter of figure VWXYZ is 33 cm. What is the value of h? Give your answer in cm.
(a)
Length of the square
= 8 ÷ 4
= 2 cm
Total lengths of VW, WX and XY
= 3 x 2
= 6 cm
Perimeter of triangle VYZ
= 4
h + 17 - 2 - 2
= (4
h + 13) cm
(b)
4
h + 17 = 33
4
h = 33 - 17
4
h = 16
h = 16 ÷ 4 = 4
Value of
h = 4 cm
Answer(s): (a) (4
h + 13) cm; (b) 4 cm