Question

3. Find the area of a quadrilateral ABCD whose
sides AB= 13 cm, BC = 12 cm, CD = 9 cm,
DA= 14 cm and diagonal BD = 15 cm. by heron's formula?​

Answer 1

Step-by-step explanation:

For ∴ABDa = 13 cm b = 14 cm c = 15 cmFor ΔBCDa = 9 cm b = 12 cm c = 15 cm Now, area of quadrilateral ABCD= area of ΔABD + area of ΔBCD = 84 cm2 .