Question

5.
1. In a rhombus ABCD, if EA'60° find GB, DC & ID.​

Answer 1

Given : in a rhombus ABCD ∠A = 60°

To Find :  ∠B, ∠C and ∠D

Solution:

a rhombus is also a parallelogram

Hence opposite angles are equal

and sum of adjacent angles is 180°

∠C = ∠A

∠A = 60°

=>  ∠C =  60°

∠A + ∠B = 180°

∠A + ∠D = 180°

∠A = 60°

=>  

  60° + ∠B = 180°  =>  ∠B = 120°

   60° + ∠D = 180°  =>  ∠D = 120°

∠B = 120°   ,  ∠C =  60° ,   ∠D = 120°

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