Question

8. In the following figure find x and y. T (a) (b) (c) 75° 120° 55° 75 60° ער y) EAR Extring angle fut 60° x x 11) X X Ay angle​

Answer 1

(a)

Sum of all interior angles of quadrilateral =360

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∴50+130+120+x=300

x=60

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(b)

90+a=180

a=90

Sum of all angles of quad =360

x+70+60+90=360

x=140

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