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How can you determine whether a quadrilateral is a rectangle without measuring?
If you know the angles, you can use them to figure it out. If they are all 90 degree angles, then it is most certainly a rectangle.
Can you draw a quadrilateral with 1 right angle?
yes, you can draw a quadrilateral with on right angle because all sides don't have to be equal for a regular one _ /Right Angle l l l l l/ --------------------------------------------------------------------------- A quadrilateral is a polygon with four sides, so yes. You can use only one right angles, if the polygon has four sides.
Why isint a traingle a quadrilateral?
It is not a quadrilateral because quadrilaterals are figures that have four sides (thus the use of quad meaning four). A triangle only has three
Why did schools use numbers instead of names?
Schools will generally use a number system of identification with the student body due to the possible repetition of names (i.e. if there were two people named John Smith), the numbers are each unique.
How can you used a triangle to prove quadrilateral is a parallelogram?
A quadrilateral, in general, is not a parallelogram. If it is a parallelogram then you will have some additional information about its sides and angles. If you do not have such information it is not possible to prove that it is a parallelogram. Draw a diagonal which will divide the quadrilateral into two triangles and use the additional information that you have to show that the triangles are congruent. This can then be used to show equality of sides or of angles: the latter can then be used to show that sides are parallel. Note that the choice of which diagonal may influence how (if at all) you proceed.
