<wxz + <zxy= <wxy
<wxy= 105
105/2= 52.5
52.5 + 52.5 = 105
105 = 105
m<wxz = 52.5
it gives you the formula, so all you have to do is plug in the coordinates

Answer:
it is sin C
Step-by-step explanation:
Answer:
¹31.5
Step-by-step explanation:
Area of trapezium= 1/2 ×h×(b1+b2)
A=1/2×3×(12+21)
A=31.5