Respuesta :

suspho

Answer:

79ft²

Step-by-step explanation:

find the unknow side a

a = √(18² - 14²)

a = √(324 - 196)

a = √128

a = 11.31 ft

---------------------

find area

(11.31 * 14) : 2 =

79.17ft²

so your answer is 79ft²

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