What is the relationship between sin(90 degrees) and sin(-90 degrees)
1 answer:
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Answer:
Option (4)
Step-by-step explanation:
Area of a triangle =
Where a and b are the sides of a triangle and θ is the angle between the sides a and b.
By this rule,
Area of ΔWZY =
45 =
9 = (YZ).Sin(115)°
YZ =
YZ = 9.93
Perimeter of parallelogram WXYZ = WX + XY + YZ + WZ
= 9.93 + 10 + 9.93 + 10
= 39.86
≈ 40 units
Therefore, perimeter of the parallelogram is 40 units.
Option (4) is the answer.
