Question

8. Find the angle measure x in the
following figure 30• 60• 70•

Answer 1

Answer:

following is a Pentagon =540°

Answer 2

Answer: 140

Step-by-step explanation:

This is a pentagon.

Sum of the interior angles of a pentagon

=180 (number of sides - 2)

=180 (5 - 2)

=180 x 3

=540

Sum of the angles on a straight line is 180

So, 180-70 = 110

     180-60 = 120

Interior angles of this pentagons are,

30, x, x, 110, 120

Sum of the interior angles of a pentagon =540

                                30 + x + x + 110 + 120 = 540

                                                       2x +260=540

                                                                 2x=540 -260=280

                                                                   x=280/2

                                                                     =140