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 2 years ago
a triangle and a rectangle are drawn on a page so that they overlap as shown. inside these figures are placed the digits from 0 to 9. if there are six digits in the triangle and eight digits in the rectangle, how many digits are in the part that belongs to both figures
 2 years ago
a triangle and a rectangle are drawn on a page so that they overlap as shown. inside these figures are placed the digits from 0 to 9. if there are six digits in the triangle and eight digits in the rectangle, how many digits are in the part that belongs to both figures

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shewolfangz
 2 years ago
Best ResponseYou've already chosen the best response.1i dnt ge the working out

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1six digits in the triangle>Let T =6 eight digits in the rectangle>Let R=8 Total = 10 digits. = T union R (in other words, T OR R) get this much ?

shewolfangz
 2 years ago
Best ResponseYou've already chosen the best response.1how do u get 10 digits?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.10 to 9 means total 10 digits i assumed that the digits are not repeated, which is a fair assumption here...

shewolfangz
 2 years ago
Best ResponseYou've already chosen the best response.1ohk...no they not repeated

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1digits are in the part that belongs to "both" figures = T AND R (T intersection R) = ...... there is a formula for this, you know ? in terms of T,R and T UNION R

shewolfangz
 2 years ago
Best ResponseYou've already chosen the best response.1but..how do u do year 7 working out..im suposed to draw the diagram and stuff..

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1'year 7 working out.' ?? i didn't get you..

shewolfangz
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1352896192555:dw

shewolfangz
 2 years ago
Best ResponseYou've already chosen the best response.1that's what the question look like

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1352896267033:dw i am not sure i can give you exact working required by your course/teacher, but i can make u understand how to get the answer....

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1now look at that figure, if u want total area of composite figure, will it be appropiate to add the area of triangle and rectangle ?

shewolfangz
 2 years ago
Best ResponseYou've already chosen the best response.1by the area of composite figure do u mean the overlapped shape?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1yes,. because then you will consider the "intersection part" twice. once in rectangle and once in triangle, got this ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1so to get area of composite figure, u need to subtract are of intersection, right ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1so , we get TOTAL = RECT +TRIANGLE  INTERSECTION. in this case, total = 10 , Rect = 8, triangle =6 u just need intersection

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1so, 10 = 8+6x where x is digits that belongs to both figures

shewolfangz
 2 years ago
Best ResponseYou've already chosen the best response.1hmm equations..lets see

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1yes, so there are 4 numbers that belong to both..

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1will u be able to solve similar problems ?

shewolfangz
 2 years ago
Best ResponseYou've already chosen the best response.1thnx for ur help hartnn

shewolfangz
 2 years ago
Best ResponseYou've already chosen the best response.1now i need to get back to my other hw

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1welcome ^_^ and good luck....
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