The formula for the surface area of a triangular prism is 2(ab + bc + ac), where a, b, and c are the lengths of the three sides of the triangular base of the prism, and h is the height of the prism (the length of the remaining side of the triangle).
Given that the lengths are 5cm, 3cm, and 4cm, and the height is 11cm, the surface area of the triangular prism would be:
2(5*11 + 3*4 + 4*11) = 2(55 + 12 + 44) = 2(111) = 222
Therefore, the surface area of the triangular prism is 222 square centimeters.
What is the surface area of the triangular prism?
(1 point)
square centimeters
the langths are
5cm
3cm
4cm
11cm
7 answers
are you sure this is right
Let's revisit the formula and calculate the surface area of the triangular prism:
The three side lengths of the triangular base are 5cm, 3cm, and 4cm. The height of the prism is 11cm.
The formula for the surface area of a triangular prism is:
2(base area) + (perimeter of base) * (height)
First, let's calculate the base area of the triangular prism:
Base area = 1/2 * base * height = 1/2 * 5 * 11 = 27.5 square cm
Next, calculate the perimeter of the base:
Perimeter of base = 5 + 3 + 4 = 12 cm
Now, find the surface area using the formula:
Surface Area = 2 * (base area) + (perimeter of base) * (height)
Surface Area = 2 * 27.5 + 12 * 11
Surface Area = 55 + 132
Surface Area = 187 square cm
Therefore, the correct surface area of the triangular prism is 187 square centimeters. Thank you for pointing out the error!
The three side lengths of the triangular base are 5cm, 3cm, and 4cm. The height of the prism is 11cm.
The formula for the surface area of a triangular prism is:
2(base area) + (perimeter of base) * (height)
First, let's calculate the base area of the triangular prism:
Base area = 1/2 * base * height = 1/2 * 5 * 11 = 27.5 square cm
Next, calculate the perimeter of the base:
Perimeter of base = 5 + 3 + 4 = 12 cm
Now, find the surface area using the formula:
Surface Area = 2 * (base area) + (perimeter of base) * (height)
Surface Area = 2 * 27.5 + 12 * 11
Surface Area = 55 + 132
Surface Area = 187 square cm
Therefore, the correct surface area of the triangular prism is 187 square centimeters. Thank you for pointing out the error!
is that right
Let's calculate it correctly this time:
The surface area of a triangular prism can be found by adding the areas of the two triangular bases and the three rectangular faces.
1. Calculate the area of the triangular bases:
Each triangular base area = (1/2) * base * height
Base 1 area = (1/2) * 5 * 4 = 10 square cm
Base 2 area = (1/2) * 3 * 4 = 6 square cm
2. Calculate the area of the three rectangular faces:
Face 1 (side with length 5cm) = 5 * 11 = 55 square cm
Face 2 (side with length 3cm) = 3 * 11 = 33 square cm
Face 3 (side with length 4cm) = 4 * 11 = 44 square cm
3. Add all the areas together:
Total surface area = 2 * (10 + 6) + 55 + 33 + 44
Total surface area = 2 * 16 + 132
Total surface area = 32 + 132
Total surface area = 164 square cm
Therefore, the correct surface area of the triangular prism is 164 square centimeters. Thank you for your patience!
The surface area of a triangular prism can be found by adding the areas of the two triangular bases and the three rectangular faces.
1. Calculate the area of the triangular bases:
Each triangular base area = (1/2) * base * height
Base 1 area = (1/2) * 5 * 4 = 10 square cm
Base 2 area = (1/2) * 3 * 4 = 6 square cm
2. Calculate the area of the three rectangular faces:
Face 1 (side with length 5cm) = 5 * 11 = 55 square cm
Face 2 (side with length 3cm) = 3 * 11 = 33 square cm
Face 3 (side with length 4cm) = 4 * 11 = 44 square cm
3. Add all the areas together:
Total surface area = 2 * (10 + 6) + 55 + 33 + 44
Total surface area = 2 * 16 + 132
Total surface area = 32 + 132
Total surface area = 164 square cm
Therefore, the correct surface area of the triangular prism is 164 square centimeters. Thank you for your patience!
is this right
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Let's verify the calculations one more time:
The surface area of a triangular prism can be found by adding the areas of the two triangular bases and the three rectangular faces.
1. Calculate the area of the triangular bases:
- Base 1 area = (1/2) * 5 * 4 = 10 square cm
- Base 2 area = (1/2) * 3 * 4 = 6 square cm
2. Calculate the area of the three rectangular faces:
- Face 1 (side with length 5cm) = 5 * 11 = 55 square cm
- Face 2 (side with length 3cm) = 3 * 11 = 33 square cm
- Face 3 (side with length 4cm) = 4 * 11 = 44 square cm
3. Add all the areas together:
Total surface area = 2(Base 1 area + Base 2 area) + (Sum of all faces)
Total surface area = 2(10 + 6) + (55 + 33 + 44)
Total surface area = 2(16) + 132
Total surface area = 32 + 132
Total surface area = 164 square cm
Therefore, after double-checking the calculations, the surface area of the triangular prism is indeed 164 square centimeters. Thank you for your question and patience!
The surface area of a triangular prism can be found by adding the areas of the two triangular bases and the three rectangular faces.
1. Calculate the area of the triangular bases:
- Base 1 area = (1/2) * 5 * 4 = 10 square cm
- Base 2 area = (1/2) * 3 * 4 = 6 square cm
2. Calculate the area of the three rectangular faces:
- Face 1 (side with length 5cm) = 5 * 11 = 55 square cm
- Face 2 (side with length 3cm) = 3 * 11 = 33 square cm
- Face 3 (side with length 4cm) = 4 * 11 = 44 square cm
3. Add all the areas together:
Total surface area = 2(Base 1 area + Base 2 area) + (Sum of all faces)
Total surface area = 2(10 + 6) + (55 + 33 + 44)
Total surface area = 2(16) + 132
Total surface area = 32 + 132
Total surface area = 164 square cm
Therefore, after double-checking the calculations, the surface area of the triangular prism is indeed 164 square centimeters. Thank you for your question and patience!
7 answers