Attempt following question by selecting a choice to answer.
D
Which figure gives a perimeter of
16 cm, if the length of each little square in the grid is
1 cm?
f DA.
DFigure 1
B.
DFigure 4
C.
DFigure 2
D.
DFigure 3
D
B
Step 1: The perimeter of a figure is the distance around it.
Step 2: Perimeter of a rectangle, P = l + w + l + w.
Step 3: For Figure 1, P = 3 + 1 + 3 + 1 = 8 cm[Substitute l = 3 cm and width w = 1 cm.]
Step 4: For Figure 2, P = 4 + 2 + 4 + 2 = 12 cm[Substitute l = 4 cm and width w = 2 cm.]
Step 5: For Figure 3, P = 3 + 4 + 3 + 4 = 14 cm[Substitute l = 3 cm and width w = 4 cm.]
Step 6: For Figure 4, P = 4 + 4 + 4 + 4 = 16 cm[Substitute l = 4 cm and width w = 4 cm.]
Step 7: So, Figure 4 gives a perimeter of 16 cm.