Question

in a quadrilateral abcd angle a=120;angle b=60 and angle c 90 then find angle d

Answer 1

angle A+angle B + angle C +angle D=360
120 +60. +90. + D. =360
→ 270 +D=360
Angle D=360-270
angle D = 80 degree

Answer 2

Answer:

Step-by-step explanation:

angle A+angle B + angle C +angle D=360

120 +60. +90. + D. =360

→ 270 +D=360

Angle D=360-270

angle D = 80 degree