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ZhangYan
Group Title
Ingrid is making a quilt using squares that measure 5 in. on a side. What is the length of a diagonal of one of the quilt squares? Round to the nearest tenth.
8.7 in.
7.1 in.
3.5 in.
14.2 in.
 2 years ago
 2 years ago
ZhangYan Group Title
Ingrid is making a quilt using squares that measure 5 in. on a side. What is the length of a diagonal of one of the quilt squares? Round to the nearest tenth. 8.7 in. 7.1 in. 3.5 in. 14.2 in.
 2 years ago
 2 years ago

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sasogeek Group TitleBest ResponseYou've already chosen the best response.2
have you done Pythagoras' theorem?
 2 years ago

sasogeek Group TitleBest ResponseYou've already chosen the best response.2
ok so we know that the quilt is being made using squares... which measure 5in on each side... basically one square will look like this dw:1336502631039:dw do you agree?
 2 years ago

sasogeek Group TitleBest ResponseYou've already chosen the best response.2
ok good, after drawing a diagonal, we'll have this dw:1336502741454:dw we'll have two right angled triangles... right?
 2 years ago

sasogeek Group TitleBest ResponseYou've already chosen the best response.2
ok good, according to pythagoras, if we have a right angled triangle, this formula holds \(\huge a^2=b^2+c^2 \) dw:1336503014472:dw my "C" is little but u can see it :) are we okay so far?
 2 years ago

sasogeek Group TitleBest ResponseYou've already chosen the best response.2
ok good, we are going to apply this to the question. we know that each side of the square is 5in, hence, dw:1336503197307:dw now looking at this, we know what "b" and "c" are, they're both 5, so we have to solve for "a" ....
 2 years ago

sasogeek Group TitleBest ResponseYou've already chosen the best response.2
what is a? dw:1336503379725:dw
 2 years ago

sasogeek Group TitleBest ResponseYou've already chosen the best response.2
good job :)
 2 years ago

ZhangYan Group TitleBest ResponseYou've already chosen the best response.2
thanks for your help this informations is really helps to me :)
 2 years ago

sasogeek Group TitleBest ResponseYou've already chosen the best response.2
anytime Zoe :D
 2 years ago
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