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Determination of an Angle || A B C D MP ON Given triangles ∆ABC and ∆ADC, having AB=AC=AD in a square □ MNOP. Line N C = C O, and BD is parallel to NO.

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Presentation on theme: "Determination of an Angle || A B C D MP ON Given triangles ∆ABC and ∆ADC, having AB=AC=AD in a square □ MNOP. Line N C = C O, and BD is parallel to NO."— Presentation transcript:

1 Determination of an Angle || A B C D MP ON Given triangles ∆ABC and ∆ADC, having AB=AC=AD in a square □ MNOP. Line N C = C O, and BD is parallel to NO. What is the value of  BCD?

2 Determination of an Angle || A B C D MP ON Triangles ∆ABC and ∆ADC are Identical.

3 Determination of an Angle || A B C D MP ON Triangles ∆ABC and ∆ADC are Identical. ∆ABC and ∆ADC are isosceles.

4 Determination of an Angle || A B C D MP ON Triangles ∆ABC and ∆ADC are Identical. ∆ABC and ∆ADC are isosceles. ∆ABD is equilateral.

5 Determination of an Angle || A B C D MP ON Triangles ∆ABC and ∆ADC are Identical. ∆ABC and ∆ADC are isosceles. ∆ABD is equilateral. 60°

6 Determination of an Angle || A B C D MP ON Triangles ∆ABC and ∆ADC are Identical. ∆ABC and ∆ADC are isosceles. ∆ABD is equilateral. 60° 30° 75°

7 Determination of an Angle || A B C D MP ON Triangles ∆ABC and ∆ADC are Identical. ∆ABC and ∆ADC are isosceles. ∆ABD is equilateral. 60° 30° 75°  BCD = 150°


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