Answer:
720ft²
Step-by-step explanation:
Wall 1&2 = lh = 15*10=150
Wall 3&4 = wh = 12*10=120
Ceiling = lw = 12*15=180
120+150+120+150+180=720ft²
The surface area of Tina's bedroom which is in rectangular prism shape is 720 square feet
Rectangular prism is a 3-dimensional solid shape which has six faces that are rectangles.
Examples are bricks, boards, doors, containers, cabinets, mobiles, and laptops.
Lateral Surface area : The lateral surface of an object is all of the sides of the object, excluding its base and top .
Lateral Surface Area of rectangular prism : 2 ( length + width ) height square units.
According to question
Length of rectangular prism = 15 feet
Width of rectangular prism = 12 feet
Height of rectangular prism = 10 feet
Surface area to be painted
Lateral surface area of rectangualar prism+ celling of wall
= 2(length + width ) height +( Length × width )
= 2(15+12)10 +(15×12)
= 540+180
= 720
Hence , Surface area she will paint of rectangular prism is 720 feet square .
To know more about rectangular prism here
https://brainly.com/question/21308855
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