From the given diagram, answer the following questions.
‘AC’ is 23 cm in the adjoining figure. Consider the figure and answer the questions
The area of DGFE is
Answer & explanation
Correct answer: option 4
Here, we have,
Trapezium (DGFE) : where two parallel sides (DG & EF) = 10cm(a) ,9cm(b) and distance b/w them (GF) = AC - CG - AF = 23 - 5 - 11 = 7cm(h)
Now,
Area of DGFE:
$\frac{1}{2}(a+b)×h=\frac{1}{2}(10+9)×7=\frac{1}{2}×19×7$
$⇒\frac{133}{2}=66.5cm^2$