Asked by gayle
In an isosceles trapezoid, the longest base is 11", a leg is 5", and the height is 4".
Find the length of the shorter base of the trapezoid.
Find the length of the shorter base of the trapezoid.
Answers
Answered by
Henry
The non-parallel sides of an isosceles
trapezoid are equal and form congruent rt triangles when the altitude is drawn. The base of the rt tiangles can be calculated:
X^2 + Y^2 = Z^2,
X^2 + 4^2 = 5^2,
X^2 + 16 = 25,
X^2 = 25 - 16,
X^2 = 9,
X = 3.
2X + B2 = B1,
2*3 + B2 = 11,
6 + B2 = 11,
B2 = 11 - 6,
B2 = 5.
trapezoid are equal and form congruent rt triangles when the altitude is drawn. The base of the rt tiangles can be calculated:
X^2 + Y^2 = Z^2,
X^2 + 4^2 = 5^2,
X^2 + 16 = 25,
X^2 = 25 - 16,
X^2 = 9,
X = 3.
2X + B2 = B1,
2*3 + B2 = 11,
6 + B2 = 11,
B2 = 11 - 6,
B2 = 5.
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