The diagonals will be equal and so: 4x-47 = 2x+31 => 4x-2x = 31+47 => 2x = 78
Therefore the value of x is: x = 78/2 => x = 39
by the formula of ---A*b
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The formula for finding the diagonals of any polygon is: 0.5*(n2-3n) where n = the number of sides. A trapezoid has 4 sides so: 0.5*(16-12) = 2 diagonals
The general formula to calculate area of a trapezoid ( and an isosceles trapezoid) is:AREA=(Sum of parallel sides)(Distance between parallel sides)/2. And if you find this formula difficult, calculate separately the area of two right angled triangles and a rectangles. For more details, contact at saqibahmad81@yahoo.com
There is no simple formula and, in any case, the answer will depend on what information about the trapezoid is given.
7
by the formula of ---A*b
It depends on what x represents, and what information you have about the trapezoid.
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The formula for finding the diagonals of any polygon is: 0.5*(n2-3n) where n = the number of sides. A trapezoid has 4 sides so: 0.5*(16-12) = 2 diagonals
Isosceles trapezoid ABCD has an area of 276 If AD = 13 inches and DE = 12 inches, find AB.
The general formula to calculate area of a trapezoid ( and an isosceles trapezoid) is:AREA=(Sum of parallel sides)(Distance between parallel sides)/2. And if you find this formula difficult, calculate separately the area of two right angled triangles and a rectangles. For more details, contact at saqibahmad81@yahoo.com
Area = 1/2*(sum of the 2 parallel sides)*height
There is no simple formula and, in any case, the answer will depend on what information about the trapezoid is given.
An isosceles triangle has three sides of equal length. To find the number of diagonals in an isosceles triangle, we can use the formula n(n-3)/2, where n is the number of sides of the polygon. In this case, an isosceles triangle has 3 sides, so plugging in n=3, we get 3(3-3)/2 = 0 diagonals. Therefore, an isosceles triangle has 0 diagonals.
Use a protractor and you'll find base angles are equal and that the 4 interior angles add up to 360 degrees