Question

The perimeter of Rectangle A is three times that of Rectangle B. Rectangle B

is 4 cm long and 6 cm wide. Given that Rectangle A and Rectangle Bare
similar, what is the perimeter of Rectangle A?
O A. 60 cm
O B. 72 cm
0
0
C. 24 cm
OD. 20 cm
SUBMIT
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Answer 1

The answer is A. 60cm.

First, find out the perimeter of rectangle B.

4cm + 6cm = 10cm
10cm x 2 = 20cm

Afterwards, times 20cm by 3, as the question says the perimeter of rectangle A is 3 times that of rectangle B.

20 x 3 = 60cm