Question

4.Find x in each of the following figure

Answer 1

Answer:

i) x = 120 ii) x = 36

Step-by-step explanation:

i)

x + 60 = 180                            ( Linear angle property )

x = 180 - 60

x = 120

ii)

3x + 2x = 180                     ( Linear angle property )

5x = 180

x = 180/5

x = 36

Answer 2

Answer:

(i) $x$° = 120°

(ii) $x$° = 36°

Step-by-step explanation:

(i) 60° + $x$° = 180° (∵linear pair)

   $x$° = 180° - 60°

   $x$° = 120°

(ii) 3$x$° + 2$x$° = 180°  (∵linear pair)

    5$x$° = 180°

    $x$° = $\frac{180}{5}$

    $x$° = 36°

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