SOLUTION: Answer the following with either True or False, if false, provide a counter example. a) An isosceles triangle is always a regular triangle. b) Squares are always trapezoids.

Algebra ->  Triangles -> SOLUTION: Answer the following with either True or False, if false, provide a counter example. a) An isosceles triangle is always a regular triangle. b) Squares are always trapezoids.       Log On


   



Question 796296: Answer the following with either True or False, if false, provide a counter example.
a) An isosceles triangle is always a regular triangle.
b) Squares are always trapezoids.
c) Rectangles are always parallelograms.
d) A kite is always a rhombus.

Answer by solver91311(24713) About Me  (Show Source):
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a. False. Consider a triangle with two equal length sides and a third side of a different length. Such a triangle is isosceles but not equilateral (or equiangular or regular).

b. False if you use the "exclusive" definition of a trapezoid (i.e. a quadrilateral with EXACTLY one pair of parallel sides). True if you use the "inclusive" definition of a trapezoid (i.e. a quadrilateral with AT LEAST ONE pair of parallel sides).

c. True

d. Consider a kite with only one diagonal that is an axis of symmetry. Such a quadrilateral is a kite but not a rhombus.

John

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