Answer:
(a) 34 cm
Explanation:
The formula for perimeter of a rectangle is
P = 2l + 2w, where
- P is the perimeter,
- l is the length,
- and w is the width.
Thus, we can plug in 12 for l and 5 for w in the perimeter formula and simplify to find the perimeter of the rectangle:
P = 2(12) + 2(5)
P = 24 + 10
P = 34
Thus, the perimeter of a rectangle with a length of 12 cm and a width of 5 cm is 34 cm.