Answer:
see explanation
Step-by-step explanation:
The area (A) of a rectangle is calculated as
A = lb ( l is length, b is breadth )
The perimeter (P) is the sum of the 4 sides
(a)
A = 9 × 17 = 153 cm²
Since opposite sides are congruent, then
P = 2(9 + 17)
= 2 × 26
= 52 cm
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(b)
A = 12 × 12 = 144 m²
P = 4 × 12 = 48 m
