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From Karnataka Open Educational Resources
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, 09:36, 17 December 2013
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| # A quadrangle with only two opposite sides parallel is called a trapezium, or trapezoid. | | # A quadrangle with only two opposite sides parallel is called a trapezium, or trapezoid. |
| # The parallel sides are called the bases of the trapezium and the other two sides are called the legs or the lateral sides. | | # The parallel sides are called the bases of the trapezium and the other two sides are called the legs or the lateral sides. |
− | # If the legs are equal in length, then this is an isosceles trapezoid. | + | # If the legs are equal in length, then this is an isosceles trapezium. |
− | # The distance between the bases is called height of trapezoid. | + | # The distance between the bases is called height of trapezium. |
| ===Notes for teachers=== | | ===Notes for teachers=== |
| ===Activity No # === | | ===Activity No # === |