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finding the surface area

Mathematics
Tutor: None Selected Time limit: 1 Day

if a rectangle with a surface area of 200 square feet is divided into two squares, and one triangle has a surface area of 57 square feet, what is the area of the second triangle?

Mar 31st, 2015

area of rectangle = 200 sq feet = base * heigh


Area of triangle is 57 sq feet = 1/2 base * height = 1/2 * b * 10 

base = (57*2)/10 = 11.4

area of second triangle is  = 1/2 base * height = 1/2 * 11.4 * 10   = 57  sq. feet  which is inside the first square


Mar 31st, 2015

Answer is 143sq". You suck arab.

Apr 1st, 2015

you dint specify ...the triangle is inside the rectangle or not....

just subtract   200sq ft - 57 sq ft which is equalt to 143 sq ft..... its not the area of second traingle...it should the remaining area of triangle....

i think ....there is some mistake in the question....

if i am wrong ...please correct me...

and one more thing.... please mind your language ... and one advice for you... respect your elders....!!

best of luck...!!


Apr 1st, 2015

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Mar 31st, 2015
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