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[" triangle "ABC" ,prove that the points...

[" triangle "ABC" ,prove that the points "B" .C "M" and "N" are cancyclic "],[" 11.If a line is drawn parallel to the base of an isosceles triangle to intersect its equal "],[" sides,prove that the quadrilatent so formed is cyclic."]

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If a line is drawn parallel to the base of an isosceles triangle to intersect its equal sides, prove that the quadrilateral, so formed is cyclic.

If a line is drawn parallel to the base of an isosceles triangle to intersect its equal sides, prove that the quadrilateral, so formed is cyclic.

If the base of an isosceles triangle is produced on both sides, prove that the exterior angles so formed are equal to each other.

If the base of an isosceles triangle is produced on both sides,prove that the exterior angles so formed are equal to each other.

Prove that the circle drawn with any one of the equal sides of an isosceles triangle as diameter bisects the unequal side.

In an isosceles triangle, prove that the angles opposite to equal sides are equal.

If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points. Prove that the other two sides are divided in the same ratio.

Prove that the circle drawn on any one of the equal sides of an isosceles triangle as diameter bisects the base.

Prove that the circle drawn on any one of the equal sides of an isosceles triangle as diameter bisects the base.

Prove that the circle drawn on any one of the equal sides of an isosceles triangle as diameter bisects the base.