Question

11. Calculate the area of trapezium as shown in thefigure DC=6CM,OA=6CM,BC=17CM,OB=8CM​

Answer 1

Answer: 150cm²

Step-by-step explanation:

OC⊥AB

So OC²=BC²-OB²     (Pythagoras Theorem)

OC² = 17²-8² = 289-64 = 225

Therefore OC = 15 cm

ar(Trapezium)= ar(TriangleBOC)+ar(RectangleADCO)

ar(Trapezium) = [1/2×8×15]+[6*15] =60+90=150 cm²