Answer:  " 94. 6  ft² ".
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<u>Step-by-step explanation</u>:
The formula for the area of a trapezoid:
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A = (1/2) * (b1 + b2) * (perpendicular height, "h" ) ; 
       in which:
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  "A = area (in units of ft²) "
  "b1 = length of (base one) = 7.7 ft (from diagram) ;  
  "b2 = length of (base two—the other base) = 14.3 ft. ; 
  "h = height (perpendicular) = 8.6 ft. 
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To solve for the Area, "A" ; we plug in the known values:
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 A =  (1/2) * (b1 + b2) * (perpendicular height, "h" ); 
    =  (1/2) * (7.7 ft + 14.3 ft) * (8.6 ft) ; 
    =  (1/2) * (22 ft.) * (8.6 ft) ;
    =  (11 ft.) * (8.6 ft.) ;
    =  (11) * (8.6) * (ft.) * (ft.) ; 
    =  (11) * (8.6) * ft² ;
A  =   " 94. 6  ft² ".
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Hope this is helpful to you!
   Best wishes!
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All triangles have a measurement of 180 degrees. Therefore, we can use this information to make an equation to find the value of angle B. 
Angle B = 180 - (28 + 36) 
Angle B = 180 - 64
Angle B = 116
So, angle B is equal to 116 degrees.
        
             
        
        
        
Answer:
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