Pyramids: Problem Solving & Reasoning

Mathematics
Grade 7
11 questions
~22 mins
1 views0 downloads

About This Worksheet

A worksheet focusing on Pyramids, covering their properties, surface area, volume, and real-world applications for Grade 7 students.

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Pyramids: Problem Solving & Reasoning

Subject: MathematicsGrade: Grade 7
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Untitled Worksheet

Grade Grade 7
A

Practice Questions

Answer all questions. Show your working in the grid spaces provided.
1.
A square pyramid has a base edge of 6 cm and a slant height of 8 cm. Calculate its lateral surface area.
[3 marks]
2.
Calculate the volume of a pyramid with a base area of 50 cm^2 and a height of 12 cm.
[3 marks]
3.
Construct a triangular pyramid with a base side of 4 cm, height of 3 cm, and a lateral face slant height of 5 cm. Draw the net on the grid.
[4 marks]
4.
A pyramid has a square base with side length 10 cm. Its slant height is 13 cm. Find the total surface area.
[4 marks]
5.
Explain why the volume formula for a pyramid is  imes Base Area imes Height, and why it is different from the volume of a prism.
[3 marks]
6.
A hexagonal pyramid has a base edge of 4 cm and a height of 9 cm. Calculate its lateral surface area, assuming each lateral face is an equilateral triangle.
[4 marks]
7.
A real-world scenario: A monument is designed as a square pyramid with a base of 15 meters and a height of 10 meters. If the architect wants to estimate the amount of materials needed for the outer surface, which surface area calculation should be used and why?
[3 marks]
8.
A pyramid has a base with side length 8 cm and a height of 6 cm. Find the volume, showing all steps.
[4 marks]
9.
Identify and correct the common mistake: A student calculates the surface area of a pyramid by adding all the edges. Is this correct? Explain your answer.
[3 marks]
10.
A triangular pyramid has a base of 5 cm sides, and each lateral face has a slant height of 7 cm. Calculate the total surface area.
[4 marks]
11.
Challenge: Derive the formula for the volume of a pyramid starting from the volume of a prism, explaining each step.
[4 marks]

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Details

Created
1/1/2026
Updated
1/1/2026
Type
worksheet