Question

the length of sides of a trangle are 7 cm ,12cm and 13cm .find the length of perpendicular from opposite vertex to the side length is 12cmhihihxpa
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Answer 1

Answer

√3 cm

Step-by-step explanation:

Area of triangle by Heron formula = √s(s-a)(s-b)(s-c) where s=a+b+c/2

s=7+13+12/2=16

=√16(16-7)(16-13)(16-12)

=√16(9)(3)(4)

=√2×2×2×2×3×3×3×2×2

=24√3cm^2

Area of triangle=1/2×base×height

24√3=1/2×12×h

24√3=6h

24√3/6=h

4√3=h

h=4√3cm