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Mathematics 19 Online
jabez177 (jabez177):

http://prntscr.com/6p7tjm What about this ?

jabez177 (jabez177):

@pooja195 @kidrah69

jabez177 (jabez177):

@kidrah69

jabez177 (jabez177):

@kidrah69

OpenStudy (mathstudent55):

Area of trapezoid = \(\dfrac{(B + b)h}{2}\)

jabez177 (jabez177):

So vice versa is ?

OpenStudy (mathstudent55):

Use the formula. Fill in all known variables with the values you are given, and solve for the unknown.

jabez177 (jabez177):

So ?

OpenStudy (mathstudent55):

\( 39 = \dfrac{(15 + 11)h}{2}\) Solve for h.

jabez177 (jabez177):

13 ?

OpenStudy (mathstudent55):

\(39 = \dfrac{26h}{2}\) \(39 = 13h\) \(\dfrac{39}{13} = \dfrac{13h}{13} \) \(3 = h\)

jabez177 (jabez177):

So 3 ?

OpenStudy (mathstudent55):

Yes. The height of the trapezoid is 3 ft.

jabez177 (jabez177):

Can you help me with one more question ?

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