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VMariaS [17]
2 years ago
9

Edge lengths are given in units. Find the surface area of each prism in square units

Mathematics
2 answers:
Kipish [7]2 years ago
7 0

Answer:

274\ units^2

Step-by-step explanation:

<u>Step 1:  Determine the area of top and bottom</u>

A = l * w

A = 13\ units * 4\ units

A = 52\ units^2

Top and bottom gives us (52 units^2 * 2) = 104 units^2

<u>Step 2:  Determine the area of the sides</u>

A = l * w

A = 4\ units * 5\ units

A = 20\ units^2

Sides gives us (20 units^2 * 2) = 40 units^2

<u>Step 3:  Determine the area of the front and back</u>

A = l * w

A = 13\ units * 5\ units

A = 65\ units^2

Ffront and back gives us (65 units^2 * 2) = 130 units^2

<u>Step 4:  Add up the areas to get the total surface area</u>

104\ units^2 + 40\ units^2 + 130\ units^2

274\ units^2

Answer:  274\ units^2

castortr0y [4]2 years ago
4 0

Answer:

<u>274 square units</u>

Step-by-step explanation:

<u>Surface Area of the prism</u>

  • SA = 2(base x height) + 2(length x height) + 2(base x length)
  • SA = 2(bh + lh + bl)

<u>Here</u> :

  1. b = 4
  2. h = 5
  3. l = 13

<u>Solving</u>

  • SA = 2(4 x 5 + 13 x 5 + 4 x 13)
  • SA = 2(20 + 65 + 52)
  • SA = 2(137)
  • SA = <u>274 square units</u>
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