Triangles

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Across
  1. 6. D and E are the midpoints of side AB and AC of a triangle ABC, respectively and BC=6cm. If DE is parallel to BC, then the length(in cm) of DE is?(write the answer using unit)
  2. 7. If triangles ABC and DEF are similar and AB=4 cm, DE=6 cm, EF=9 cm and FD=12 cm, the perimeter of triangle ABC is?
  3. 8. If perimeter of a triangle is 100 cm and the length of two sides are 30 cm and 40 cm, the length of the third side will be?(write the answer with unit)
  4. 9. Which triangle have 2 sides equal?
  5. 10. all circles are?
Down
  1. 1. Which triangle have all the sides equal?
  2. 2. all squares are?
  3. 3. theorem, which theorem says that if a line is drawn parallel to one side of a triangle to Intersect the other two sides in distinct points, the other two sides are divided in same ratio.
  4. 4. In a rectangle L=8cm, B=6cm then it's diagonal will be?(write the answer with unit)
  5. 5. a triangle with all three sides different?
  6. 7. The diagonals of a rhombus are 16 cm and 12 cm, In length. The side of the rhombus in length is?(ans. With unit)
  7. 8. how many medians can a triangle have?