. In ∆ABC, AB = 6√3 cm, AC = 12 cm, and BC = 6 cm then mA
= ?
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0
Answer:
Step-by-step explanation:
Given:
In △ABC
AB=6
3
cm
AC=12cm
BC=6cm
Solution:
AC
2
=144
AB
2
=108
BC
2
=36
Since,
AC
2
=AB
2
+BC
2
∴ By Converse of Pythagoras Theorem,
△ABC is an Right Angle Triangle at B.
∴∠B=90
o
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