Question

in the given figure, express a in terms of b.

Answer 1

Hope... this will help u.

Answer 2

a = 360° - 2b

Step-by-step explanation:

This is an isosceles triangle

=> Interior Angle opposite to Exterior angle a   are equal = let say x

a = Sum of of those angle  

=> a = x + x

=> a = 2x

Out of the two angles one is supplementary angle of  b

=> b + x = 180°   ( straight line)

=> x = 180° - b

putting value of x in a = 2x

=> a = 2(180° - b)

=> a = 360° - 2b

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