Question

find the value of the unknown angle in the following figures.​

Answer 1

Answer:

Use angle sum property for solving this ......

It says : Sum of all the angles of a triangle = 180°

Exterior angle = Sum of two opposite interior angle ...

Answer 2

As we know the sum of two interior angles is equal to the exterior angle of the triangle in this case so

a)the equation according to the property

= 70°+50°=y

y=120°

b)the equation according to the property

= 30°+x=93°

x= 93°-30°

x= 63°

c)the equation according to the property

=69°+z=138°

z= 138°-69°

z= 69°

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