CBSE Class 7 Answered
In the figure below, both AC and EF are perpendiculars to DB. Also, AC = EF and AB = ED. Prove that 
B = D.
B = D.
Asked by Topperlearning User | 19 Nov, 2013, 02:11: AM
Expert Answer
Given : AC
DB ; EFDB
AC = EF ; AB = ED.
To prove: 
B = D
Proof : AC = EF (given)
1 = 2 (perpendicular lines meet to form right angles)
Hyp AB = Hyp ED (given)
Thus, 
ABC 
EDF (By RHS congruence rule).
So, B = D (Corresponding parts of congruent triangles)
Answered by | 19 Nov, 2013, 04:11: AM
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