Question

find x in the following figure​

Answer 1

Answer:

Step-by-step explanation:

∠EDC=180°-60° (angles on a straight line add up to 180°)

=120°

∠DEA=180°-90° (angles on a straight line add up to 180°)

=90°

∠EAC=90° (given)

∠ABC=180°-40° (angles on a straight line add up to 180°)

=140°

∠BCD= 540°-(140°+120°+90°+90°)

(angle sum property of pentagon states sum of interior angles = 540°)

=540°-440°

=100°

∠x= 180°-100°

=80°