0
What else can I help you with?
What is a quadrilateral with four right angles and opposite sides are parallel but not all sides are congruent?
This describes a rectangle. It has four sides, four right angles, and its opposite sides are parallel, but the adjacent sides are not equilateral (congruent). If a quadrilateral has four right angles, it will be either a square or a rectangle. With the four right angles, it cannot be anything else. Draw a line segment. Now draw another one at a right angle to the first one. Now draw a third line segment at a right angle from the second one, and make this one the same length as the first one. Then draw the last segment to close the figure. It will have fours sides, and it will have four right angles. It will also have two pairs of parallel sides.
How can you find the area of a quadrilateral?
Multiply the length by the width for a square or rectangle. For a rhombus or parallelogram times the base by the height. For a trapezium Call the two parallel sides a and b and find their average, a+b divided by 2. This is the average of the horizontal lengths. Now multiply this by the height and you have the area! (Last Answer by Mathdoc and Anithaanil). Yea that's pretty much it... :)
Can a quadrilateral contain 3 obtuse angles?
quadrilateral means having all sides the same length. when you make a shape with 3 obtuse angles and with the same length on the sides, only 3 of them will have the same length which is the sides of the 3 obtuse angles. then the last side will be too long. obviously it is no more quadrilateral.
How do you find the last side of a trapezoidal prism i have the two unparallel sides and side a how do i find side b?
Assuming a and b are the parallel sides of the trapezoid then with great difficulty - you need to know how far apart the parallel sides are.
What is the perimeter of a rectangle 11 m x 5 m?
A rectangle has 4 sides and the opposite sides are of equal length. You therefore have two sides of length 5 m and two sides of length 11 m. To get the perimeter you add up the length of all the sides. I will leave this last bit for you to do.
What has 2 pair of parallel sides 3 equal sides and 4 right angles?
the last person who answered this said pentagon, but there isn't a correct answer for this. A square would be the closest, but it has FOUR equal sides.
How do you find the last side of a trapezoidal prism... i have the two un-parallel sides and side a. how do i find side b?
There is not enough information to be able to find the last side.
What is the only parallelogram that can be inscribed in a circle?
Any parallelogram can be inscribed in a circle if the parallelogram is sufficiently small, but only two of the "corners" (a corner is a vertex) of the parallelogram will lie on the circle. But any parallelogram with four right angles (a rectangle or a square) can be inscribed in a circle, and all four of the vertexes will lie on the circumference. So the only parallelogram that can be inscribed in a circle is a rectangle.You'll recall that a parallelogram is a quadrilateral with two pairs of parallel sides. If the interior angles of a parallelogram are right angles, that sets conditions for a special case of a parallelogram called a rectangle. If the sides of a given rectangle are the same length, that rectangle is now a special case of rectangle called a square. Any rectangle (including the special case of the square) can be inscribed inside a circle so all vertexes lie on the circle.If we're interested in a construction project, start by drawing a circle. Then pick any two points on the circle and connect them with a line segment. Next, draw a line segment from each of the original points across the circle, insuring that each line segment is at a right angle to that first line segment. Lastly, connect the two points on the circle where those last two line segments have interesected the circle. You'll find that in every case you try, you'll have constructed a rectangle. And if the line segments all end up the same length, your rectangle will be a square.
How many rectangles are on the pitch?
there are 8 rectangles on a football pitch. There is 3 on both sides for the goals, there are 2 for the outline of the 2 parts and last of all the rectangle that goes around the whole pitch.
How do you solve the problem Nu is disigning a rectangular sandbox The bottom is 16 square feet which dimensions requie the least amount of material for the sides of the sandbox?
Ok, an important part of this is that shapes can be categorized into multiple groups. It goes something like this in this case: Quadrilateral V Rectangle V Square When dealing with shapes, regular polygons always have less perimeter than irregular for the same area. Here, a square would have a perimeter of 16, with 4x4 dimensions; the next closest rectangle would have a perimeter of 20, with dimensions of 8x2; the last rectangle you could make would have a perimeter of 34, with dimensions of 16x1.
How do you prove that the midpoints of a convex quadrilateral form a parallelogram?
There are several different ways and these depend on the level of your knowledge of different branches of mathematics. The simplest method uses vectors, but that is probably the topic that is covered last. So this proof is based on a simpler method.Suppose the quadrilateral is ABCD with lengths AB = 2w, BC = 2x, CD = 2y and DA = 2z (I have chosen multiples of two to avoid fractions later), and suppose that P, Q, R and S are the midpoints of the sides AB, BC, CD and DA respectively.Consider the triangle DSRthen, by the cosine rule,SR^2 = DS^2 + RD^2 - 2*DS*RD*cos(D) = z^2 + y^2 - 2yz*cos(D)Now join AC and consider the triangle DAC. Again, using the cosine rule,AC^2 = DA^2 + CD^2 - 2*DA*DC*cos(D) = 4z^2 + 4y^2 - 4*2yz*cos(D) = 4*SR^2Taking square roots, AC = 2*SRTherefore the sides of triangles DS are all half the lengths of the corresponding sides in triangle DAC.Therefore the two triangles are similar and so the corresponding angles are equal.It follows that SR is parallel to AC.Similarly it can be shown that triangle ABC is similar to triangle PBQ so thatPQ is half of AC and PQ is parallel to AC.Thus, SR and PQ are both parallel to AC and half its length. They are therefore parallel to one another and the same length.Next, by drawing BD, it can be shown that QR and PS are parallel and equal.Thus, both pairs of opposite sides of PQRS are equal and parallel which proves that the quadrilateral is a parallelogram
Can you name all the polygons?
Not really, because there are an infinitely large number of polygons. Just keep adding another side to the last one you had and you can go on forever. There are special names for a small group of polygons, starting with one that has three sides, the triangle, and continuing on to four sides (quadrilateral), five sides (pentagon), six (hexagon), and even eight (octagon) or ten (decagon). Once you get past that group, you just name a polygon by the number of sides it has. You call it a 20-gon, or a 30-gon.With the variable n representing the number of sides. There are also Shapes called quadrilaterals which are a group of 4 sided shapes including a square, a rectangle a trapezium and many more! That is what I know and what I can tell you!
