Math

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Across
  1. 3. the shape that has 3 sides is?
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  1. 1. if the base of triangel is 8 cm long and its height is 6 cm,what is the area of triangle
  2. 2. If a equiterial triangle has sides of 5 cm, find the perimeter!
  3. 4. a quadrilateral with four congruent angles and four congruent sides is