Math Problem Statement

Given the diagram, find the total surface area of the triangular prism.

Solution

Let's solve this step by step.

Problem Breakdown:

We are tasked with finding the total surface area of a triangular prism. A triangular prism has:

  1. Two triangular bases.
  2. Three rectangular lateral faces.

To find the total surface area: Total Surface Area=Area of the 2 Triangular Bases+Area of the 3 Rectangular Faces.\text{Total Surface Area} = \text{Area of the 2 Triangular Bases} + \text{Area of the 3 Rectangular Faces}.

Step 1: Find the Area of the Triangular Base

The triangular base is a right triangle with dimensions 6cm6 \, \text{cm} (base) and 8cm8 \, \text{cm} (height). The area of a triangle is given by: Area of one triangle=12×base×height\text{Area of one triangle} = \frac{1}{2} \times \text{base} \times \text{height} Area of one triangle=12×6×8=24cm2\text{Area of one triangle} = \frac{1}{2} \times 6 \times 8 = 24 \, \text{cm}^2 Since there are two triangular bases: Area of two triangles=2×24=48cm2\text{Area of two triangles} = 2 \times 24 = 48 \, \text{cm}^2

Step 2: Find the Area of the Rectangular Faces

The three rectangular faces are:

  1. A rectangle with dimensions 10cm×6cm10 \, \text{cm} \times 6 \, \text{cm}: Area=10×6=60cm2\text{Area} = 10 \times 6 = 60 \, \text{cm}^2
  2. A rectangle with dimensions 10cm×8cm10 \, \text{cm} \times 8 \, \text{cm}: Area=10×8=80cm2\text{Area} = 10 \times 8 = 80 \, \text{cm}^2
  3. A rectangle with dimensions 10cm×10cm10 \, \text{cm} \times 10 \, \text{cm}: Area=10×10=100cm2\text{Area} = 10 \times 10 = 100 \, \text{cm}^2

Step 3: Add All Areas Together

Now, sum up all the areas: Total Surface Area=Area of two triangles+Area of all rectangles\text{Total Surface Area} = \text{Area of two triangles} + \text{Area of all rectangles} Total Surface Area=48+60+80+100=288cm2\text{Total Surface Area} = 48 + 60 + 80 + 100 = 288 \, \text{cm}^2

Final Answer:

288cm2\boxed{288 \, \text{cm}^2}

Would you like a detailed explanation of any step, or do you have additional questions?


Related Questions:

  1. What is the formula for the volume of a triangular prism, and how does it compare to the surface area?
  2. How do you calculate the diagonal length of a rectangular face in a prism?
  3. Can you calculate the perimeter of the triangular base for this prism?
  4. What would happen to the surface area if the dimensions of the prism were doubled?
  5. How does the surface area of a cylinder differ from that of a prism with the same base?

Tip:

When solving surface area problems, always break down the shape into simpler components (triangles, rectangles, etc.) for easier calculations.

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Math Problem Analysis

Mathematical Concepts

Geometry
Surface Area Calculation
Right Triangles

Formulas

Area of a triangle = (1/2) × base × height
Surface Area of a prism = Area of two bases + Area of three rectangular faces

Theorems

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Suitable Grade Level

Grades 6-8