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Question

Find the area of hexagon ABCDEF in which BL ⊥ AD, CM ⊥ AD, EN ⊥ AD and FP ⊥ AD such that AP = 6 cm, PL = 2 cm, LN = 8 cm, NM = 2 cm, MD = 3 cm, FP = 8 cm, EN = 12 cm, BL = 8 cm and CM = 6 cm.

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Solution

Area of hexagon ABCDEF=Area ofAFP+Area of trapezium FENP+ Area ofEND + Area ofCMD +Area of trapezium BCML + Area ofALB

=12×AP×FP+12×FP+EN×PN+12×ND×EN+12×MD×CM +12×CM+BL×LM+12×AL×BL=12×AP×FP+12×FP+EN×PL+LN+12×NM+MD× EN +12×MD×CM+12×CM+BL×LN+NM+12×AP+PL×BL=12×6×8+12×8+12×2+8+12×2+3×12+12×3×6 +12×6+8×8+2+12×6+2×8 cm2=24+100+30+9+70+32 cm2=265 cm2

Hence, the area of the hexagon is 265 cm2.

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