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Using congruent triangles, one can prove that the rhombus is symmetric across each of these diagonals. It follows that any rhombus has the following properties: Opposite angles of a rhombus have equal measure. The two diagonals of a rhombus are perpendicular; that is, a rhombus is an orthodiagonal quadrilateral. Its diagonals bisect opposite ...
rhombus In Euclidean plane geometry , a rectangle is a rectilinear convex polygon or a quadrilateral with four right angles . It can also be defined as: an equiangular quadrilateral, since equiangular means that all of its angles are equal (360°/4 = 90°); or a parallelogram containing a right angle.
A simple (non-self-intersecting) quadrilateral is a parallelogram if and only if any one of the following statements is true: [2] [3] Two pairs of opposite sides are parallel (by definition). Two pairs of opposite sides are equal in length. Two pairs of opposite angles are equal in measure. The diagonals bisect each other.
A quadrilateral is a square if and only if it is any one of the following: [2] [3] A rectangle with two adjacent equal sides; A rhombus with a right vertex angle; A rhombus with all angles equal; A parallelogram with one right vertex angle and two adjacent equal sides; A quadrilateral with four equal sides and four right angles
Additionally, if a convex kite is not a rhombus, there is a circle outside the kite that is tangent to the extensions of the four sides; therefore, every convex kite that is not a rhombus is an ex-tangential quadrilateral. The convex kites that are not rhombi are exactly the quadrilaterals that are both tangential and ex-tangential. [16]
Golfing among U.S. presidents is culturally embedded in the job—even if you come into the White House as a casual player. It's seen as a stress reliever for one of the toughest jobs in the world.
From January 2008 to May 2009, if you bought shares in companies when Michael H. Sutton joined the board, and sold them when he left, you would have a -96.7 percent return on your investment, compared to a -38.2 percent return from the S&P 500.
STILLWATER, Okla. (AP) — J'Wan Roberts had 20 points and 11 rebounds to lead No. 14 Houston past Oklahoma State 60-47 on Monday night in the Big 12 Conference opener for both teams.