3
Marks
1. Find the area of
quadrilateral ABCD, given that
CF = 3 cm, BD = 8 cm and AE =
1.5 cm
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Explanation:
area of quad. ABCD= area of ∆ABD+area of ∆BCD
area of ∆ABD= 1/2×base×height
=1/2×8×1.5
=4×1.5
=6.0
=6 cm²
area of∆BCD= 1/2×base× height
= 1/2×8×3
= 4×3
=12 cm²
area of quad. ABCD= 6+12
18 cm²
I hope this will help you
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