Using a net to find the surface area of a rectangular prism Online Quiz

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Explanation

Step 1:

Using net, the surface area of a rectangular prism = 2(lw + wh + lh); l = 8 ; w = 4; h = 3

Step 2:

Surface area of given prism = 2(8×4 + 8×3 + 3×4)

= 2(32 + 24 + 12)

= 136 square cm

Explanation

Step 1:

Using net, the surface area of a rectangular prism = 2(lw + wh + lh); l = 8 ; w = 5; h = 9

Step 2:

Surface area of given prism = 2(8×5 + 8×9 + 5×9)

= 2(40 + 72 + 45)

= 314 square cm

Explanation

Step 1:

Using net, the surface area of a rectangular prism = 2(lw + wh + lh); l = 4 ; w = 9; h = 2

Step 2:

Surface area of given prism = 2(9×4 + 4×2 + 9×2)

= 2(36 + 8 + 18)

= 124 square cm

Explanation

Step 1:

Using net, the surface area of a rectangular prism = 2(lw + wh + lh); l = 2 ; w = 3; h = 8

Step 2:

Surface area of given prism = 2(2×3 + 8×2 + 3×8)

= 2(6 + 16 + 24)

= 92 square cm

Explanation

Step 1:

Using net, the surface area of a rectangular prism = 2(lw + wh + lh); l = 6 ; w = 5; h = 3

Step 2:

Surface area of given prism = 2(6×5 + 6×3 + 3×5)

= 2(30 + 18 + 15)

= 126 square cm

Explanation

Step 1:

Using net, the surface area of a rectangular prism = 2(lw + wh + lh); l = 3 ; w = 6; h = 8

Step 2:

Surface area of given prism = 2(3×6 + 8×3 + 6×8)

= 2(18 + 24 + 48)

= 180 square cm

Explanation

Step 1:

Using net, the surface area of a rectangular prism = 2(lw + wh + lh); l = 2 ; w = 8; h = 7

Step 2:

Surface area of given prism = 2(8×2 + 2×7 + 8×7)

= 2(16 + 14 + 56)

= 172 square cm

Explanation

Step 1:

Using net, the surface area of a rectangular prism = 2(lw + wh + lh); l = 5 ; w = 6; h = 4

Step 2:

Surface area of given prism = 2(5×6 + 5×4 + 6×4)

= 2(30 + 20 + 24)

= 148 square cm

Explanation

Step 1:

Using net, the surface area of a rectangular prism = 2(lw + wh + lh); l = 6 ; w = 9; h = 6

Step 2:

Surface area of given prism = 2(6×9 + 6×6 + 6×9)

= 2(54 + 36 + 54)

= 288 square cm

Explanation

Step 1:

Using net, the surface area of a rectangular prism = 2(lw + wh + lh); l = 4 ; w = 9; h = 2

Step 2:

Surface area of given prism = 2(4×9 + 4×2 + 9×2)

= 2(36 + 8 + 18)

= 124 square cm

using_net_to_find_surface_area_of_rectangular_prism.htm
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