Question

Question 7

Match the shapes (each side measures 2 cm) in Column I with the correponding perimeters in Column II.

Answer 1

(iv) Perimeter of figure = Sum of all sides
= AB + BC + CD + DE + EF + FG + GH + HI + IJ + JK + KL + LM + MN + NA
= 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 28 cm

(i) Perimeter of figure = Sum of all sides
= AB + BC + CD + DE + EF + FG + GH + HA
= 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 16 cm

(ii) Perimeter of figure = Sum of all sides = AB + BC + CD + DE + EF + FG + GH + HI + IJ + JA
= 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 20 cm

(iii) Perimeter of figure = Sum of all sides
= AB + BC + CD + DE + EF + FG + GH + HI + IJ + JK + KL + LA
= 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 24 cm