gilbertnaomi08
contestada

Yana is making new cushion covers for a chair. There are three sizes of
cushions on the chair. What is the surface area of the seat back cushion?
26 in
14 in
5 in
5 in
Net for Seat Back
26 in
26 in
5 in
seat back
18 in
14 in arm rest
18 in
18 in
seat bottom
5 in
5 in
26 in
21 in
26 in

Yana is making new cushion covers for a chair There are three sizes of cushions on the chair What is the surface area of the seat back cushion 26 in 14 in 5 in class=

Respuesta :

baldishkaur309

Answer:

A

Step-by-step explanation:

18x26=468

26x5=160

18x5=90

Add all of those 688 and times it by 2

688x2=1376

The area of a 2D form is the amount of space within its perimeter. The surface area of the seatback cushion is 1376 sq. inches.

What is an area?

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The surface area of the seat back cushion can be written as,

Surface Area = 2[(26×18) + (18×5) + (26×5)]

                      = 2[(468)+(90)+(130)]

                      = 1376 sq. inches.

Hence, the surface area of the seatback cushion is 1376 sq. inches.

Learn more about the Area:

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