2. D is the midpoint of side BC of triangle ABC. If AB 4.
AC=6 and BC = 8, then find l(AD) and hence
perimeter of triangle ABD.
Answers
Answered by
2
The length of AD is √20cm and the perimeter of ∆ABC is 18cm
Answered by
4
The value of length of AD = = 2.904 units
The value of Perimeter of Δ ABD = 9.654 unit
Step-by-step explanation:
From the Δ ABD in the figure
------ (1)
From the Δ ADC
---- (2)
From Equation (1) & Equation (2)
unit
Thus BD = 2.75 unit
& CD = 8 - 2.75
⇒ CD = 5.25 units
From equation (1)
AD = 2.904 units
This is the value of length of AD.
Perimeter of Δ ABD = AB + BD + DA
Since AB = 4 , BD = 2.75 & DA = 2.904
Perimeter of Δ ABD = 4 + 2.75 + 2.904
Perimeter of Δ ABD = 9.654 unit
This is the value of Perimeter of Δ ABD
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