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jacobciezki
 one year ago
What is the area of the figure?
jacobciezki
 one year ago
What is the area of the figure?

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SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436297142209:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436297153477:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0what is this length that I marked with a question mark? how long is it, do you know?

jacobciezki
 one year ago
Best ResponseYou've already chosen the best response.0idk the whole line is 17

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0yes, and you know that up to that point the length is 12

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0so the little segment that I marked is how long?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0Now I will rewrite the picture.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436297366908:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0that is all you need to know, and now we will split this shape into two different shapes.  triangle  trapezoid

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436297509433:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436297594485:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0Can you find the area of this triangle here?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0When finding the area of a triangle, we apply the following formula. \(\large \displaystyle {\rm Area}=\frac{({\rm base})\times({\rm height}) }{2}\) `(you were almost correct)`

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0So the area of the triangle is 180.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0Now the trapezoid.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0Whenever we have a trapezoid with bases \({\rm B}_1\) and \({\rm B}_2\), and a hieght \({\rm H}\), we apply this formula: (below) \(\displaystyle \large {\rm Area}=\left(\frac{{\rm B}_1~+~{\rm B}_2}{2}\right)\times {\rm H}\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436298221879:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0So your bases are 14 and 18 (doesn't matter which one you assign \({\rm B}_1\) and which you assign \({\rm B}_2\)). And your height is 5.  \({\rm B}_1\) and \({\rm B}_2\) \(\huge \rightarrow\) \(14\) and \(18\) \({\rm H}=5\)  Now plug in this into the formula (below). \(\displaystyle \large {\rm Area}=\left(\frac{{\rm B}_1~+~{\rm B}_2}{2}\right)\times {\rm H}\)

jacobciezki
 one year ago
Best ResponseYou've already chosen the best response.080 ?????????????????//

jacobciezki
 one year ago
Best ResponseYou've already chosen the best response.0what is it 180 188 or 80

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436298631302:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0So the area of the trapezoid is 80 (and recall that the area of the triangle is 180)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0dw:1436298718423:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0so then if triangle is 180 and trapezoid is 80, the entire figure has an area of?

wil476003
 one year ago
Best ResponseYou've already chosen the best response.1The triangle would not be 180 it is 108 becuase 9 times 12 equals 108 and then you divide it by two to get 54 and then you multiply it by 2 so the full answer would be 188

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0yes I allowed an error by a triangle

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0tnx for correcting me @wil476003 the height of the triangle is 12. So, Area (of the triangle) = (12 • 18) ÷ 2 = 108

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0I apologize for my mistake, and for my departures. I am cooking for my family (or at least trying to), and for this reason I had to leave for undefined periods of time.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0see why triangle has an area of 108?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0Then the entire shape = triangle + trapezoid = 108 + 80 = 188 (as wil476003 previously asserted)
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