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The circular measure of an angle of an isosceles triangle is...

This question belongs to Arithmetic Ability Circular Measurement Of Angle
Circular Measurement of Angle
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The circular measure of an angle of an isosceles triangle is $$\frac{{5\pi }}{9}$$, circular measure of one of the other angles must be:

Answer & Solution
Correct Answer: Option C
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1 Comment
Pir Wahid
Pir Wahid 2 years ago
5π/9=100*
other two angles=80/2=40* each
40*=40×π/180=2π/9
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