opposite angles

Whcih of the statements is not always correct for a parallelogram? => Lines joining the midpoints of consecutive sides form another parallelogram or Both the pairs of opposite angles are equal or Angle bisectors of adjacent angles are perpendicular to each ot..

Summary - If two sides of a triangle are equal, the angles opposite to them are equal. If two angles of a triangle are equal, the sides opposite to these angles are equa..

Which conjecture is true about a rectangle? => If the diagonals of a parallelogram are congruent, then it is a rectangle. or If both diagonals perpendicularly bisect each other, then the quadrilateral is a rectangle. or If only one pair of opposite angles is right angle..

The opposite sides and angles of a parallelogram are equa..

In the figure, ∠ 1 and ∠ 2 are => Vertically opposite angles or Alternate angles or Adjacent angles or Corresponding angles..

If two lines intersect, then the vertically opposite angles are congruent..

If two sides of a triangle are equal, the angles opposite to them are equa..

If two sides of a triangle are unequal, then the greater angle is opposite to the greater sid..

If a side of a triangle is produced, the exterior angle so formed is equal to the sum of the interior opposite angles..

Statement - If a side of a triangle is produced, the exterior angle so formed is equal to the sum of the interior opposite angles..