Important Questions of Triangles Mathematics | Zigya

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 Multiple Choice QuestionsShort Answer Type

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41. In figure, X and Y are two points on equal sides AB and AC of a ∆ABC such that AX = AY. Prove that XC = YB.


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42. Prove that the angles opposite to equal sides of a triangle are equal. Is the converse true? 
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43. In figure, AB = AC, D is the point in the interior of ∆ABC such that ∠DBC = ∠DCB. Prove that AD bisects ∠BAC of ∆ABC.


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 Multiple Choice QuestionsLong Answer Type

44.

 In figure, ABCD is a square and ∠DEC is an equilateral triangle. Prove that

(i)     ∆ADE ≅ ∆BCE
(ii)    AE = BE
(iii)   ∠DAE = 15°

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 Multiple Choice QuestionsShort Answer Type

45. In ∆ABC, AB = AC, ∠A = 36°. If the internal bisector of ∠C meets AB at D, Prove that AD = DC. 
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46. In figure, AB = BC, AD = EC. Prove that ∆ABE ≅ ∆CBD.


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47. ABC is an isosceles triangle with AB = AC. Draw AP ⊥ BC. Show that ∠B = ∠C.
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48. In an isosceles triangle ABC with AB = AC, BD and CE are two medians. Prove that BD = CE. 
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49. In figure, if PS = PR, ∠TPS = ∠QPR then prove that PT = PQ.




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50. In figure, ∠x = ∠y and PQ = PR. Prove that PE = RS.


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