To find the area of trapezoid ABCD, we can use the formula for the area of a trapezoid, which is given by:
Area=12×(sum of the lengths of the bases)×(height)
In this case, the bases are AB and CD, and the height can be found using trigonometry.
Given:
- AB = 96
- CD = 44
- ∠D = 110°
- ∠B = 55°
First, let's find the height of the trapezoid, which is the perpendicular distance between AB and CD. We can use the law of sines to find the height.
sin(55°)CD=sin(110°)AB
sin(55°)44=sin(110°)96
Now, let's solve for the height:
Height=sin(55°)×44sin(110°)
Height≈0.8192×441
Height≈36
Now, we have the height. Let's calculate the area using the formula for the area of a trapezoid:
Area=12×(AB+CD)×Height
Area=12×(96+44)×36
Area=12×140×36
Area=70×36
Area=2520square units
So, the area of trapezoid ABCD is 2520 square units.