Question

Which of the following equations below represents how to find the area of the smaller rectangle?

Answer
A
9cm x 15cm = 135cm2
B
(9cm + 4cm) x (15cm + 5cm) = 260cm2
C
(9cm - 4cm) x (15cm - 5cm) = 50cm2
D
None of the above

Answer 1

C

(9cm - 4cm) x (15cm - 5cm) = 50cm2

D

Answer 2

the answer is c because you have to subtract the extra space from the bigger box to find the area of the smaller one.