Think of a trapezoid with b1 and b2 as the length of the bases, h as the length of the altitude, and A as the area. Find the missing parts.

b1 b2 h A
1/2 1/4 1

Question

Think of a trapezoid with b1 and b2 as the length of the bases, h as the length of the altitude, and A as the area. Find the missing parts.

b1	b2	h	A
1/2	1/4	1

anonymous · Answer

attachment

anonymous · Answer

h       
Area of trapezoid = ---- * (b1 + b2)
                                      2        

b1	b2	h	A
1/2	1/4	1	

Here area = ?? ,   h=1,   b1=1/2 = 0.5  and   b2=1/4 = 0.25
                 1
Area  = ---- * (0.5 + 0.25)
                2

Area = 0.5 (0.75)
                                 375          3
Area = 0.375  or ------  = ----
                               1000          8