Find the unknown marked angles in each of the following figures...plz

1.	Find the unknown marked angles in each of the following figures...plz give answer in step by step answer with explanation plz ....
Answer» You can DRAW a perpendicular line from D down AB. Now, ΔADH will form. It is right-angled at ∠H. Sum of all ANGLES of a TRIANGLE is 180° ∠D + 63° + 90° = 180° ∴∠D is 27° x = ∠D + 90° Therefore, x=117°. x=y y=117°

Find the unknown marked angles in each of the following figures...plz give answer in step by step answer with explanation plz ....

Answer»

You can DRAW a perpendicular line from D down AB.

Now, ΔADH will form. It is right-angled at ∠H.

∠D + 63° + 90° = 180°

∴∠D is 27°

Therefore, x=117°.

y=117°