Maths Crossword

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Across
  1. 3. Mathematician who derived the formula for calculating area of a triangle using it's three sides.
  2. 5. Area of rhombus can be obtained by ½ product of ________.
  3. 7. A Mathematician & a Philosopher, who discovered BPT.
  4. 8. Letter S Used in Heron's formula stands for _______.
Down
  1. 1. Measure of the region on a surface enclosed by a closed curve.
  2. 2. A branch of mathematics that deals with the measurement of length, areas, and volumes.
  3. 4. Twice the area of the triangle divided by its height
  4. 6. A triangle with no two sides equal in length.
  5. 7. Figures obtained by joining opposite vertices of a quadrilateral.