find the angle of a concave quatrilaterals with angle A =150, angleB=30 and angleC=37 find angle D

Asked by yogita | 25th Oct, 2015, 12:07: PM

Expert Answer:

C o n s i d e r space a space q u a d r i l a t e r l space A B C D G i v e n space t h a t space angle A equals 150 degree comma space angle B equals 30 degree comma space angle C equals 37 degree space a n d space w e space n e e d space t o space f i n d space angle D S u m space o f space a l space t h e space a n g l e s space i n space a space q u a d r i l a t e r a l space i s space 360 degree T h u s comma space angle A plus angle B plus angle C plus angle D equals 360 degree rightwards double arrow 150 degree plus 30 degree plus 37 degree plus angle D equals 360 degree rightwards double arrow 217 degree plus angle D equals 360 degree rightwards double arrow angle D equals 360 degree minus 217 degree rightwards double arrow angle D equals 143 degree

Answered by Vimala Ramamurthy | 25th Oct, 2015, 03:35: PM