Answer: 62. 150°, 63. 90° (62. D, 63. C)
Explanation:
If you look at the picture, you can see angle 1 and the 30° angle combined make a straight line. An angle that makes a straight line, or a straight angle = 180°.
Supplementary angles, are 2 angles that add up to 180°. Since 1 and 30° combined add up to 180° they are supplementary. So to find angle 1, subtract 30 from 180, since subtraction is the inverse of addition. You will get 150, meaning angle 1 is 150°.
Complementary angles add up to 90°. Since angles 3 and 2 both make up the right angle square, they are complementary. This means that the only option is 90° since the angles both make up the right angle square wi=hich is 90°.
Therefore 62 = D and 63 = C.
Hope that helped a lot.
:)