The area of an isosceles trapezoid with sides of length 5 and bases of length 11 and 17 is?	Choices:
A) 48
B) 52
C) 54
D) 56
E) 46
Isosceles trapezoid indicates that if we draw perpendicular from two vertex of the smaller side, the longer side with side 17 will be divided into 3 parts= 11, 3 and 3 (Making one square and two right triangles)   For the right triangle, height will be= (5^2-3^2)^1/2= 4   And the area of trapezoid = 1/2 (B1+B2)H= 1/2*28*4= 
<gadget id="calculator">1/2*28*4</gadget>
<output>56</output>
56   56 is the answer
<result>D</result>
The area of an isosceles trapezoid with sides of length 5 and bases of length 11 and 17 is?