Page 3 - IX Math CBQ ch-10 Herons formula
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1.  What is the length of equal sides.
                  2.  What is herons formula
              3.

        AN    1.d          2.b        3.c       4.c       5.b
        S
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              6. 21√11 cm ,

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              7. Area = 84 cm , the altitude is 12 cm.

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              8. 15.16 cm .
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              9.  Area of trapezium is 1644 m

              10.Proof,


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              11. 65.5m                      12.a                        13.b                        14.a

              15.8  ii)


































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