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What is the height and bases of a trapezoid where one base is twice the other and the height is the average of the two bases the area is 324?
Wiki User
∙ 15y ago
Area of the trapezoid: A = (1/2)(B + b)(h)
Let b =x, then B = 2x, and h = (2x + x)/2.
Substitute what is given in the formula, and we have:
A = (1/2)(B + b)(h)
324 = (1/2)(2x + x)[(2x + x)/2]
324 = (1/4)(3x)(3x)
324 = (1/4)(9x^2)
324 = (9/4)x^2 multiply by 4/9 to both sides
1296/9 = x^2
144 = x^2
12 = x (since the length is positive, ignore negative value for x)
2x = 2 x 12 = 24
(2x + x)/2 = (24 + 12)/2 = 36/2 = 18
Thus, the small base is 12, the big base is 24, and the height is 18.
Wiki User
∙ 15y ago
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Do the diagonals of a trapezoid bisect each other?
No, never. A trapezoid may have diagonals of equal length (isosceles trapezoid), but they do not intersect at their midpoints.Draw the diagonals of a trapezoid, for example, an isosceles trapezoid, thereby creating 4 triangles inside the trapezoid. Now assume the diagonals do bisect each other. The congruent corresponding sides of the top and bottom triangles with the included vertical angle would make the triangles congruent by the side-angle-side theorem. But this is a contradiction since the respective bases of the triangles, forming the top and bottom of the trapezoid are, of course, not equal. Therefore, the triangles cannot be congruent. Hence, we have given proof by contradiction that diagonals in a trapezoid cannot bisect each other.
What are two other names for a trapezoid?
A trapezoid is called a trapezium in the UK (because the UK trapezoid is scalene). In any case, a trapezoid is also a quadrilateral, in that it has four sides.
What is the area of a trapezoid?
The area of a trapezoid = 1/2 (altitude)(base 1 + base 2) *altitude can also be called the height, or the spacing between the parallel sides. Base 1 is the length of one of the parallel sides, and base 2 is the length of the other parallel side.
What is a of trapezoid?
A trapezoid is a shape which has parallel lines and two other lines connecting the parallel ones.
4 sided shape all sides different lengths?
A trapezoid other than an isosceles trapezoid
What is the area of a trapezoid if the meausure of the base is 8 and the height is 5?
Area of a trapezoid = 0.5*(sum of parallel bases)*height Need to know the measure of the other base
What are the bases on the trapezoid?
The bases on a trapezoid are the two lines that are parallel to each other. .............................. ....____base____...... .../ ...................\..... ../ .....................\.... ./_____base_____\... .............................
What is the area of a trapezoid with the height of 12cm and the base of 15 cm?
The formula to calculate the area of a trapezoid is (1/2) * sum of the bases * height. Given that the height is 12 cm and the bases are 15 cm and another side, the area can be calculated as (1/2) * (15 + b) * 12, where b is the length of the other base.
What is the area of trapezoid with bases 8 inch and 12.5 inches and the height of 6 inches?
The area of any trapezoid is 1/2 times (length of one base plus length of the other base) times (height). You ought to be able to handle it from there.
Is an isosceles trapezoid has congruent bases?
No. The other two sides are congruent.
What are all parts of a trapezoid?
Two bases that are parallel to each other and two sides that are of unequal lengths unless it is an isosceles trapezoid whereas the sides will be equal in length.
Can any side of a trapezoid be called a base?
No, only the two sides that are parallel to each other are bases.
What is the area of a trapezoid with base lengths 14 cm and 12 cm and a height of 8 cm?
The area of ANY trapezoid is [ 1/2 times (height) times (one base plus the other base) ].Knowing that, you can now find the area of not only that particular trapezoid, but ofevery trapezoid that you ever encounter for the rest of your life. The formula is notexpected to change. You are empowered !
Can any side of a trapezoid can be called a base?
The two parallel sides are called the bases, and the two non-parallel sides are the legs. If you call any other pair of sides the bases, the formula for the area of the trapezoid will no longer work.
How do you find area of a triangle when you have more than one base and height?
A triangle only has 3 sides. The bottom is the base, and there is no other. There is one height, which runs right up the middle.You are probably looking for a trapezoid. And the formula for that isA = 1/2 (p + q) x hwhere p and q are the separate bases.
Can you relate the area formulas of two triangles to the area formula of a trapezoid with a diagonal drawn?
Yes.Each triangle has an area = 1/2 base x height.So the two equal triangles (one upright and the other one upside-down) that fit into the trapezoid will give the trapezoid an area = twice 1/2 base x height = base x height.
How is trapezoid different from other quadrilaterals?
It has 2 classifications which are a trapezoid and an isosceles trapezoid
