When you add all four sides of a quadrilateral(all parallelograms are quadrilateral), It must equal 360 degrees. So what you do is you add up the three angles that are given, them subtract that sum from 360.
Well, darling, to find the area of a shape, you need to know the shape itself! If those numbers represent the sides of a rectangle, you can pair them up to find the length and width. Then, just multiply the length by the width to get the area. So, in this case, the area would be 36 square centimeters.
A = LW divide by W to both sides A/W = L
Only the base in not enough information. You can find the area if you are given the other two sides, or two angles, or a side and an angle, or measures of other features. However, the answer depends on the information given and the formula is likely to be different in each case.
A trapezium has a pair of parallel sides of different lengths so in order to find its 2nd parallel side the information given must include its height.
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You cannot. A square can be distorted into a rhombus without changing the lengths of any of the sides, but with a different area. Similarly, the shape of any quadrilateral can be altered without affecting the length of its sides but changing its area.
It depends on what kind of quadrilateral is. Still, you can't solve it.
well change it into another quadrilateral and then take away the area of the lines you added
The only way to find the area is to have two sides to multiply them together unless you have the hypotenuse.
Well, darling, the figure you're describing is a trapezoid, not a quadrilateral, so let's get that straight. To find the area, you can use the formula A = 0.5 * (a + b) * h, where a and b are the lengths of the parallel sides and h is the height between them. Plug in the values and you'll get the area in square meters. Voilà!
You cannot. The length of the sides of a quadrilateral do not provide sufficient information to find its area. In the same way the a square can be distorted into a thinner and thinner rhombus with a smaller and smaller area, so can any quadrilateral.
A trapezium is a quadrilateral (has four sides). Two sides are parellel, but the other two are not. To find the area of it, the formula is: 1/2 h(a+b)
If those are sides of a quadrilateral, you can't calculate the area - there is insufficient information. The same sides can be connected at different angles, resulting in different areas.
Assuming "liths" is an unusual way of spelling lengths, you cannot because a quadrilateral is not a rigid shape. It can be deformed into a quadrilateral with the same sides but a different area. This can be illustrated by thinking of a square deforming into a rhombus. Same sides but different area.
A quadrilateral has 4 sides but may not be symmetric. Bretschneider's formula provided a method using side lengths and two opposite angles. Any scalene quadrilateral can be divided into four triangles and the area is the sum of their areas. (see the related link below)
Height = Area*2/sum of parallel sides