Question

25. ABCD is a rectangle of length 30 cm and breadth 20 cm. What is the area of the shaded triangles ? A E B 20 cm D С 30 cm (A) 100 cm2 (B) 400 cm2 (C) 600 cm? (D) 300 cm2​

Answer 1

Area of triangle

=l×b=30×20=600 cm²

Area of ΔDGF= 1/2×b×h

=1/2×10×15

=75cm²

Similarly area of 75 cm²

Area of shaded region =600−(75+75)

=600−150

=450 cm²

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