Question

The width of a rectangle measures
(
7.3
d
+
2.2
f
)
(7.3d+2.2f) centimeters, and its length measures
(
5.9
d
+
8.3
f
)
(5.9d+8.3f) centimeters. Which expression represents the perimeter, in centimeters, of the rectangle?


26.4
d
+
21
f
26.4d+21f

2.2
+
16.6
f
+
26.4
d
2.2+16.6f+26.4d

21
+
26.4
d
21+26.4d

13.2
d
+
10.5
13.2d+10.5

Answer 1

Answer:

Option (1)

Step-by-step explanation:

Length of a rectangle = (5.9d + 8.3f) cm

Width of the rectangle = (7.3d + 2.2f) cm

Since formula to get he perimeter of a rectangle is,

Perimeter = 2(length + width)

                = 2[(7.3d + 2.2f) + (5.9d + 8.3f)]

                = 2(13.2d + 10.5f)

                = (26.4d + 21f) cm

Therefore, Option (1) will be the correct option.