Question

The length and width of a rectangle are 17 cm and 9 cm. If the dimensions are tripled, by exactly how much has the perimeter of the rectangle increased?
(Hint: Use the Numeric Method)

26 cm
104 cm
78 cm
52 cm

Answer 1

help

Answer 2

its 78 (:

Answer 3

help please show me how

Answer 4

The length of the new rectangle=17*3
=51
The width of the new rectangle=9*3
=27
Perimeter=2(length+width)
=2(17+9)
=2(26)
Perimeter of the new rectangle=2(length+width)
=2(51+27)
=2(78)
The perimeter is increased by 2(78)-2(26).
2(78)-2(26)=2(78-26)
=2(52)
=104

Answer 5

shes correct i forgot about the last part