Answer:
Step-by-step explanation:
Rectangle B :
P = 2(L + W)
L = 4
W = 6
P = 2(4 + 6).....P = 2(10)...P = 20 cm
so the perimeter of rectangle B is 20 cm
perimeter of rectangle A is 3 times bigger...
so perimeter of rectangle A is : (3 * 20) = 60 cm <==
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another way to do this is if rectangle A is 3 times bigger, then the length and width are 3 times bigger too
so if rectangle B has a length of 4 cm, then rectangle A has a length of
(4 * 3) = 12 cm
and if rectangle B has a width of 6 cm, then rectangle A has a width of
(6 * 3) = 18 cm
so rectangle A perimeter is :
P = 2(L + W)
L = 12
W = 18
P = 2(12 + 18)...P = 2(30).....P = 60 cm <===
either way u choose to do it will give u the same answer
