Surface Area 147 cm²: Find Missing Cuboid Dimensions

The surface area of the cuboid shown below is 147 cm².

What are the dimensions of the cuboid that are not labelled in the drawing?

171717

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 What are the box dimensions that don't appear in the drawing?
00:03 Let's use the formula for calculating the surface area of a box
00:07 Let's substitute appropriate values according to the given data and try to solve
00:18 We have no way to know the missing dimensions
00:22 Therefore there is no solution to the question

Step-by-step written solution

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1

Understand the problem

The surface area of the cuboid shown below is 147 cm².

What are the dimensions of the cuboid that are not labelled in the drawing?

171717

2

Step-by-step solution

Given the surface area of a cuboid formula:

S=2(lw+lh+wh) S = 2(lw + lh + wh)

We have one fixed dimension as 17 cm. However, we do not know which two dimensions among length (l l ), width (w w ), or height (h h ) correspond to this value. Our goal is to solve the expression with this unknown configuration as:

2(17w+17h+wh)=147 2(17\cdot w + 17\cdot h + wh) = 147

Simplifying gives:

17w+17h+wh=73.5 17w + 17h + wh = 73.5

Further simplification only provides combinations for dimensions.
However, no logical combination allows us to solve this equation since the equation involves three variables but is provided just a single constraint (surface area).

Therefore, identifying the dimensions from the given information is impossible without additional details or constraints on the remaining dimensions.

Given the specified choices, the correct conclusion for the problem is "Impossible to calculate."

3

Final Answer

Impossible to calculate.

Practice Quiz

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A cuboid is shown below:

222333555

What is the surface area of the cuboid?

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