Answer:
Q 1
U and S are congruent and sum of 4 angles is 360.
- 130 + 2*80 + m∠T = 360
- m∠T = 360 - 290
- m∠T = 70
Correct choice is B
Q 2
∠1 and ∠3 are complementary, AC is angle bisector and ∠2 is right angle since diagonals of a kite are perpendicular
- ∠DAC≅∠BAC
- m∠1 = 39°
- m∠3 = 90° - 39° = 51°
Correct choice is C
Q 14
- A- guaranteed
- B- guaranteed
- C- guaranteed
- D- not guaranteed as it could be a rhombus
