Question

Find the total surface area. prisms 10
a. 69 m² b. 78 m²
c. 92 m² d. 98 m²

Answer 1

To find the total surface area of a prism, you need to add up the areas of all its faces.

Step-by-step explanation:

To find the total surface area of a prism, you need to add up the areas of all its faces. For example, if a prism has a rectangular base with length 'L', width 'W', and height 'H', the total surface area would be:

2(LW + LH + WH)

Since the question doesn't provide specific dimensions or shape of the prism, we cannot calculate the exact total surface area. Therefore, none of the options (a, b, c, d) can be considered as the correct answer.

Answer 2

Option b) 78 m² is the correct answer for the total surface area of the rectangular prism depicted in the image.

Based on the image you sent, which shows a drawing of a rectangular prism with measurements, the total surface area is 78 m².

1. Identify the individual surfaces and their dimensions:

- Top and bottom faces: 4 m x 6 m each

- Side faces: 3.5 m x 2 m each

2. Calculate the area of each surface:

- Top/bottom: 4 m × 6 m = 24 m² each

- Side: 3.5 m × 2 m = 7 m² each

3. Add the areas of all surfaces:

- 24 m² (top) + 24 m² (bottom) + 2 * 7 m² (sides) = 78 m²

Question: