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To answer this question,

# You need to know the total number of degrees possible for the angles of a quadrilateral to add up to. # You need to know how many degrees in a right angle. # You need to be able to multiply that answer by 3 and subtract the total from the answer to number 1.

or

you can draw or imagine a 4-sided figure with three right angles and note the position of the lines that form that fourth angle. There is only one choice. What must that angle be?

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Q: A quadrilateral has three right angles what do you know about the fourth angle?
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Can you draw a quadrilateral that has three right angles?

The sum of the interior angles of a quadrilateral is 360 degrees. If three of the angles are right angles, that is, of 90 degrees each, the the fourth must be 90 degrees. So you can have a quadrilateral with three right angles but its fourth angle will also be a right angle. So exactly 3 right angles is not possible.


How many right angles can a quadrilateral have?

a quadrilateral can have from 0 to 4 right angles. But it can't have exactly three right angles. The interior angles of a quadrilateral sum to 360 degrees. If it had three right angles and x were the measure of the fourth angle: 3*90+x=360 x=360-270=90 So if it has three right angles, the fourth angle would be a right angle as well.


A quadrilateral with no right angles is?

a quadrilateral with no right angle is?


Can a quadrilateral have 3 obtuse angles and 1 right angle?

No a quadrilateral can't have 3 obtuse angles and 1 right angle because if a polygon did have 3 obtuse angles and 1 right angle then it would not even be a quadrilateral.


Is quadrilateral with at least three right angles is a rectangle?

if a quadrilateral has three right angles will also have have a fourth right angle. Making it a rectangle. The addition of all the angles in a triangle is 360 degrees. If there are three right angles, and you subtract their addition by 360, you will get ninty degrees.


Is a quadrilateral with one right angle necessarily a rectangle?

A quadrilateral can have two right angles and still not be a rectangle, if one side is oblique (neither right nor parallel) to the others, but three right angles force the fourth, and you have a rectangle.


What is the most right angle quadrilateral can have?

A quadrilateral can have four right angles.


Which quadrilateral always have a 90-degree angles?

The only quadrilaterals that always have all four right angles are the square and the rectangle. All four angles in a quadrilateral must add up to 360 degrees.It is possible to have non-regular quadrilaterals with one or two right angles. A quadrilateral with three right angles becomes either a square or a rectangle, because its fourth angle must also be a right angle.


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.


Do qaudrilaterals have 3 right angles?

Quadrilaterals are polygons having four sides. Quadrilaterals may have 1, 2, or 4 right angles. It is impossible for a quadrilateral to have exactly 3 right angles because the fourth angle would also be a right angle.


What does a trapezoid with three right angles look like?

A trapezoid can't have three right angles. A quadrilateral with three right angles must have a total of four right angles, since a quadrilateral's interior angles add up to 360. 360 - (3*90) = 90, so the fourth angle would have to be right as well. A quadrilateral with four right angles is not a trapezoid; instead it is a rectangle or a square.


Can you draw a quadrilateral with 3 right angels?

The sum of the interior angles of a quadrilateral is 360 degrees so if 3 of them are right angles (90 °) the remaining fourth angle must also be 90 °. 360° - 3x90° = 90°