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3 years ago

Help anyone please!! Anyone

Mathematics

1 answer:

natka813 [3]3 years ago

6 0

Answer:

Total surface area = 132 square feet

Step-by-step explanation:

Surface area of the triangular prism = Area of the triangular bases + Area of the lateral rectangular sides

Area of the triangular surface = $\frac{1}{2}(\text{Base})(\text{Height})$

= $\frac{1}{2}\times 5\times 4$

= 10 square feet

Area of the rectangular side with dimensions 5ft by 7ft,

Area = 5 × 7 = 35 square feet

Area of the rectangular side with dimensions 7ft by 4ft,

Area = 7 × 4 = 28 square feet

Area of the rectangular side with dimensions 7ft by 7ft,

Area = 7 × 7 = 49 square feet

Total surface area = 2(10) + 35 + 28 + 49

= 132 square feet

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Step-by-step explanation:

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