ICSE /Class 9
Maths MCQ Based On Triangles
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ICSE Class 9 Maths Triangles
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triangle
recall triangle properties
Use pythagoras theorem for finding the breadth of rectangle.
An exterior angle of a triangle is equal to the sum of the opposite interior angles.
Join UW and now look for the triangles formed.
Given, AB=PQ, B=Q and C=R So, A.A.S. criterion of congruency
Use pythagoras theorm
Find the angles first.
Use properties of rhombus and rectangle
1 +GBC = 2+DEC = 180°(linear pairs) So, GBC DEC BC-CE GCB=DCE(vert. opp. angles) Hence by A.S.A criterion of congruence, GCB≅ DCE
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