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CBSE Class 9 Answered

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Asked by | 25 Jul, 2009, 05:24: AM
answered-by-expert Expert Answer

The  bisector of the angle  if it is the perpendicular then it divdes the triangle into two congruent triangles.

In triangle ABC, if AD is the angle bisector &also perpendicular then

ang BAD = angCAD

AD =AD

ang BDA =ang CDA =90 degrees

therefore triangle ADB is congruent to ADC

therefore AB =AC cpct

triangle ABC is an isosceles triangle.

Answered by | 02 Aug, 2009, 06:05: PM

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