What is the area of the trapezoid?

As we know that,
[tex]\bigstar \: \boxed{\sf {Area_{(Trapezium)} = \dfrac{1}{2} \times ( a + b) \times h}} \\ [/tex]
Substituting values, we get :
[tex] \longmapsto [/tex] Area = [tex]\sf \dfrac{1}{2} [/tex] × ( 60 + 40 ) × 30 ft[tex] \sf ^2 [/tex]
[tex] \longmapsto [/tex] Area = [tex]\sf \dfrac{1}{2} [/tex] × 100 × 30 ft[tex] \sf ^2 [/tex]
[tex] \longmapsto [/tex] Area = 1 × 100 × 15 ft[tex] \sf ^2 [/tex]
[tex] \longmapsto [/tex] Area = 100 × 15 ft[tex] \sf ^2 [/tex]
[tex] \longmapsto [/tex] Area = 1500 ft[tex] \sf ^2 [/tex]
Therefore,