Question

find <x in each figure ​

Answer 1

(i) Interior angle of property = ( n-2 ) × 180

Sides of the polygon = 4

Interior angle of property = ( 4-2 ) × 180

= 2 × 180

= 360

360 = 90 + 140 + 60 + x

360 = 290 + x

x = 360 - 290

x = 70

( ii ) Interior angle of property = ( n-2 ) × 180

Sides of the polygon = 4

Sides of the polygon = 4 Interior angle of property = ( 4-2 ) × 180

Sides of the polygon = 4 Interior angle of property = ( 4-2 ) × 180 = 2 × 180

Sides of the polygon = 4 Interior angle of property = ( 4-2 ) × 180 = 2 × 180 = 360

360 = 60 + 90 + 90 + x

360 = 240 + x

x = 360 - 240

x = 120