HERONS FORMULA

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Across
  1. 3. - Area of a ________ = 1/2 X (sum of parallel sides) X height
  2. 5. - A _____triangle is a triangle in which all sides are unequal
  3. 9. - What is missing in the formula of area of a triangle if sides are a, b and c. A= sX(s-a)(s-b)(s-c)
  4. 10. - Area of ____ triangle = root3 x square of side / 4
Down
  1. 1. - A triangle whose two sides are equal
  2. 2. - A mathematician who gave the formula for finding the area of a triangle when three sides are given.
  3. 4. Half of sum of all sides of a triangle
  4. 6. Area of a triangle by herons formula if sides are of length 13,14 and 15cm is ___ square cm.(Write in words)
  5. 7. - Semiperimeter of a triangle if sides are 8,11 and 13. (Write the answer in words)
  6. 8. - Area of a right angled triangle is 1/2 X product of base x corresponding ___