Respuesta :

KyleeHammond37

Answer:

17

Step-by-step explanation

Using the formula: A= base1 + base 2/ 2 *h

The base you are looking for will be named a;

a = 2 a/h - b 2*112/8 - 11 =17

first a is base a. = 2 times area divided by height minus base b which is 2 times 112 over 8 minus 11 which gives you the answer of 17

GreekPhilosipher

Answer: The answer is 17

Step-by-step explanation: The equation for a trapezoid is a= a+b divided by 2 x hight

if the area is 112 you must divide it by 8 the hight which gets you 14 then times 14 by 2 which gets you 28 so if you do 11+17 it gets you 28 once done check it by pluging in 17 into the equation as b and