Yes. The fourth angle is 115 degrees.
4 sides requires Total interior angles of 360 degrees 360-90-90-91= 89
This is an arrowhead quadrilateral.
It is a parallelogram or a rhombus
It will be a right angle triangle and the other sides will have acute angles.
The supplement of a 49 degree angle is a 131 degree angle. The supplement of an angle 'x' is equal to 180-x. Two supplementary angles add up to 180 degrees.
4 sides requires Total interior angles of 360 degrees 360-90-90-91= 89
paralellogram
This is an arrowhead quadrilateral.
No , a parallelogram can not have a 90 Degree angle .Reason : A Parallelogram can be defined as a quadrilateral whose two s sides are parallel to each other and all the four angles at the vertices are not 90 degrees or right angles, then the quadrilateral is called a parallelogram.
Two possibilities are a kite, or an irregular quadrilateral with one right angle!
It is a parallelogramIf one of the angles is a right angle (then they all are) and the quadrilateral is a rectangle.If both pairs of sides are equal in length (but none of the angles is a right angle) the quadrilateral is a rhombus.If the sides are equal and one of the angles is a right angle, the quadrilateral is a square.
A right angle triangle has one 90 degree angle and two acute angles
90 degrees That is only true for a square. One interior angle of a quadrilateral can be anything from 0 to 360 degrees (excluding the two extreme values).
A quadrilateral is an object formed by four straight lines - two of which meet at an angle. A diagonal is one of the lines which go from one angle to the one other angle in the quadrilateral which it is not already connected to. If the angles of the quadrilateral are A, B, C and D, and A is connected by a straight line to B and D then the diagonal is a line between A and C. A--B | \ | D--C
A quadrilateral may have zero, one, two, or three acute angles.
An arrowhead
Parallelogram