Q3 of 45 Page 11

Find the area of a rhombus in which each side is equal to 15cm and one of whose diagonals is 24cm. 


Let ABCD be the rhombusAB = 15cm, BO = 12cm.Since AOB is right angled at O.By pythagoras them,                                   Therefore the two diagonals are 18 cm and 24 cm.The area of rhombus 

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1 The diagonal of a quadrilateral is 30m in length and the length of the perpendiculars to it from the opposite vertices are 6.8 m and 9.6m. Find the area of the quadrilateral. 2 Find the area of a rhombus the lengths of whose diagonals are 36cm and 22.5cm. 4 Find the area of a trapezium whose parallel sides are 57 cm and 39 cm and the distance between them is 28 cm. 5 The area of trapezium is 352 cm2. The distance between the parallel sides is 16cm. If one of the parallel sides is 25 cm. Find the other.