Math, asked by prajwal77, 1 year ago

in triangle abc de is parallel to bc if ad is equal to 4 cm a b is equal to 7 cm is equal to 3 cm and bc

Answers

Answered by Anonymous
0

BASIC PROPORTIONALITY THEOREM(BPT) :

If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points than the other two sides are divided in the same ratio.

SOLUTION:

In ∆ABC , DE||BC

AD/DB= AE/EC

[ By basic PROPORTIONALITY theorem]

AD/DB= AE/(AC-AE)

3/5 = AE / (4.8 - AE)

3(4.8 - AE) = 5 AE

14.4 - 3AE = 5AE

14.4 = 5AE+3AE

14.4 = 8AE

AE = 14.4/8

AE= 1.8

Hence, AE is = 1.8 cm


HOPE THIS WILL HELP YOU..



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