Question

• in figure 12.8
please give me answer.

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Answer 1

Answer:

28 cm^2

Step-by-step explanation:

Area of triangle BCE = 1/2 * 4* 5

= 10cm^2

using Pythagorean theorem

CB^2 = CE^2 + BE^2

= 25 = CE^2 + 16

= CE^2 = 25 - 16

= CE = 3cm

Now,

Area of rectangle = Length * breadth

= 6cm * 3 cm

= 18 cm^2

Area of Trapezium = Area of triangle+Area of rectangle

= ( 10 + 18 ) cm^2

= 28 cm^2