angle abc is right angle at B. BD is perpendicular to AC if ab is 3 cm BC 4 cm and ac 5 cm find the area of a triangle ABC also find the length of BD
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Answer:area of triangle : 1/2×base ×hieght
=1/2×BC ×AD
=1/2 ×4×3
=6cm^2
SO AREA OF triangle = 6cm^2
1/2 ×base ×height = 6
1/2 ×AC ×BD =6
1/2 ×5 ×BD =6
BD = 6×2/5
BD = 12/5
BD = 2.4 cm
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