EASY
9th CBSE
IMPORTANT
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Which of the following needs a proof?

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Important Questions on Introduction to Euclid's Geometry

EASY
9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 5 - Introduction to Euclid's Geometry>Objective Questions>Q 17

Euclid stated that all right angles are equal to each other in the form of