Triangles
ICSE · Class 6 · Mathematics
Most important questions from Triangles for ICSE Class 6 Mathematics board exam 2026. MCQs, short answer, and long answer questions with marks.
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Sample Questions
An angle that measures less than 90° is called:
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Acute angle
An acute angle is less than 90°.
A triangle with all angles less than 90° is called:
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Acute-angled triangle
If all three angles are less than 90°, it is an acute-angled triangle.
A triangle with one angle equal to 90° is called:
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Right-angled triangle
A triangle with one 90° angle is a right-angled triangle.
A triangle with one angle greater than 90° is called:
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Obtuse-angled triangle
A triangle with one angle greater than 90° is an obtuse-angled triangle.
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