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What quadrilateral has two pairs of equal lines one pair of equal angles and one reflex angle?
Wiki User
∙ 14y ago
This is an arrowhead quadrilateral.
Wiki User
∙ 14y ago
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ABCD is a quadrilateral in which angle A 40 degrees and angle B 150 degrees. Could ABCD be a parallelogram?
for a+ NEVERIn a parallelogram opposite angles are equal. Thus angle c = angle a = 40o.The sum of all the angles in a quadrilateral is 360o, so:angle a + angle b + angle c + angle d = 360o=> 40o + angle b + 40o + angle d = 360o=> angle b + angle d = 280o.
Does a parallelogram rectangle have a reflex angle?
No, parallelograms and rectangles cannot have reflex angles. This is because 1. The sum of their interior angles must be 360 degrees. 2. Opposite angles must be equal. 3. If it were the case that a reflex angle existed, two angles would have to be greater than 180 by 2. 4. But by 1, the two angles would now sum over 360, and that cannot occur for a four-sided polygon.
Explain that the sum of interior angle is equal to quadrilateral 360?
Any quadrilateral may be split into two triangles; the sum of internal angles of any triangle is 180 degrees; so the sum of internal angles of a quadrilateral will then be the double of the sum of internal angles of a triangle: 180 x 2 = 360.
The measures of the three angles of a quadrilateral are 80 140 55 find the measure of the fourth angle?
the angle measures of a quadrilateral must equal 360 degrees so you add 80+140+55=275 then subtract from 360. the answer is 85
Can a reflex angle be 360 degrees?
No. A reflex angle is strictly greater than (not equal to) 180 degrees and strictly less than (not equal to) 360 degrees.
What is a Quadrilateral with two sets of parallel sides?
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.
What quadrilateral shape has 2 equal sides and a reflex angle?
An arrow head
What quadrilateral has one reflex angle and 2 pairs of adjacent sides equal?
A chevron.
Has the arrowhead got any equal angles?
Yes. The two angles on either side of the reflex angle are normally equal.
What are three names for a polygon that has four equal sides and no right angles?
a rhombus, a quadrilateral without right angle, a quadrilateral with equal opposite parallel sides but no right angles
What is a quadrilateral with two pairs of equal adjacent sides axis of symmetry and one reflex angle?
An arrowhead
What is a quadrilateral with 2 pairs of equal adjacent sides an axis of symmetry and 1 reflex angle?
Kite
Does a nonconvex polygon have exterior angles equal to 360?
No, but the sum of the exterior angles is 360 degrees. But remember that the exterior angle related to any reflex angle will be negative.No, but the sum of the exterior angles is 360 degrees. But remember that the exterior angle related to any reflex angle will be negative.No, but the sum of the exterior angles is 360 degrees. But remember that the exterior angle related to any reflex angle will be negative.No, but the sum of the exterior angles is 360 degrees. But remember that the exterior angle related to any reflex angle will be negative.
Why must concave quadrilaterals be irregular?
A regular polygon has all its angles of equal measure, and its sides of equal length. In the case of a quadrilateral, that would mean a square. A concave quadrilateral must have at least one reflex angle and so cannot be a square. So it cannot be regular.
What quadrilateral has 3 equal angles?
There is no specific name for one with 3 equal angles. All the interior angles in a quadrilateral add up to 360°. So you would have 3A + B = 360. Where angles A = C = D. Now a rectangle has 4 equal angles (90°), so it also has 3 equal angles. And just happens to have the 4th angle equal the other 3.To visualize a quadrilateral with only 3 equal angles: take a square ABCD, and stretch angles A,C & D to 91°. Now angle B will equal 87°.
What is the quadrilateral with three equal angles?
With quadrilaterals, if there are three equal angles, then we know that the fourth angle must be equal, so the quadrilateral is a rectangle. * * * * * That is absolute rubbish. You can have a quadrilateral with three angles of 70 degrees and the fourth of 150 degrees. There is no name for such quadrilaterals and the only thing that can be said about them is that they are irregular.
A quadrilateral with 2 pairs of equal adjacent sides 1 axis of symmetry and 1 reflex angle?
parallelogram
