Question

solve this question find x in this question will mark you as brainelist. and this question is of 100 points​

Answer 1

Answer:

$x = \: 80$ °

Step-by-step explanation:

GIVEN :-

Δ ABC              

       

∠ ACB = 50 °

       

∠ ABC = 30 °

       

EXTERIOR ∠x

TO FIND :-

       

EXTERIOR ∠x

SOLUTION :-

       

30° + 50° + ∠CAB = 180° (ANGLE SUM PROPERTY OF A TRIANGLE)

       

80° + ∠CAB = 180 °

       

∠CAB = 180° - 80°

       

∠CAB = 100°

       

∠CAB + ∠x = 180 ° ( LINEAR PAIR )

       

100° + ∠x = 180°

       

∠x = 80 °

$\huge\bf\green{KNOW    MORE !!}$

     

ANGLE SUM PROPERTY :- The total measure of the three angles of a triangle is 180°.

   

 

LINEAR PAIR :-  A linear pair of angles is formed when two lines intersect.The measure of a straight angle is 180 °, so a linear pair of angles must add up to 180 °.

Answer 2

50+30+ANGLE CAB= 180 ........

80+ANGLE CAB = 180.

ANGLE CAB=180-80=100.

X+ 100=180

X= 180-100.

X= 80...

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