Rhombus: Error Analysis & Misconceptions

Mathematics
Grade 7
10 questions
~20 mins
1 views0 downloads

About This Worksheet

A worksheet focusing on identifying and correcting misconceptions related to the properties of a rhombus, designed for Grade 7 students.

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Rhombus: Error Analysis & Misconceptions

Subject: MathematicsGrade: Grade 7
Name:
Date:
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Untitled Worksheet

Grade Grade 7
A

Fluency & Practice

Answer all questions. Show your working in the grid spaces provided.
1.
Calculate the length of the side of a rhombus if its diagonals are 10 cm and 24 cm. Show your working.
[3 marks]
2.
If a rhombus has all sides equal to 8 cm, and one interior angle measures 60°, what is the measure of the opposite interior angle? Show your reasoning.
[3 marks]
3.
Construct a rhombus with sides of 6 cm where one angle is 45°. What are the measures of the other angles?
[4 marks]
B

Problem Solving & Reasoning

Answer the following multi-step problems with explanation.
1.
A farmer designs a rectangular garden in the shape of a rhombus with diagonals measuring 12 m and 16 m. Calculate the area of the garden and explain which properties of the rhombus help in your calculation.
[4 marks]
2.
A rhombus has sides of length 9 cm. One of its interior angles is 70°. Find the measure of the other angles and justify your answer.
[4 marks]
C

Real-world Applications

Solve these context-based problems involving rhombuses.
1.
A decorative mosaic tile in the shape of a rhombus has diagonals of 30 cm and 40 cm. If each tile is to be framed with a strip of uniform width, how much framing material is needed for one tile? Show calculations.
[4 marks]
D

Challenge & Extension

Answer these advanced questions to deepen your understanding.
1.
Prove that the diagonals of a rhombus bisect each other at right angles and explain why this property distinguishes a rhombus from other parallelograms.
[3 marks]
2.
Construct a rhombus with sides of 7 cm where the diagonals intersect at right angles, and one diagonal measures 10 cm. Calculate the length of the other diagonal.
[3 marks]
E

Mixed Review & Error Analysis

Identify the errors and correct the misconceptions.
1.
A student claims that all sides of a rhombus are equal, but the angles can vary freely. Is this correct? Explain your reasoning and correct any misconceptions.
[2 marks]
2.
A diagram shows a rhombus with one interior angle of 90°. Students are asked to determine the other angles. They assume all angles are right angles. Identify and correct this misconception.
[2 marks]

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Details

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