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Princess07
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In this plan, segments AB, EF, GH, and JK are perpendicular to base BC. The instructions call for extra pieces of wood to reinforce AE, EG, GJ, and JC. Given AE = 42.2 cm, find EG to the nearest tenth of a centimeter.
42.2 cm , 40.1 cm , 36.6 cm , or 36.9 cm ??
 2 years ago
 2 years ago
Princess07 Group Title
In this plan, segments AB, EF, GH, and JK are perpendicular to base BC. The instructions call for extra pieces of wood to reinforce AE, EG, GJ, and JC. Given AE = 42.2 cm, find EG to the nearest tenth of a centimeter. 42.2 cm , 40.1 cm , 36.6 cm , or 36.9 cm ??
 2 years ago
 2 years ago

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Princess07 Group TitleBest ResponseYou've already chosen the best response.0
In this plan, segments AB, EF, GH, and JK are perpendicular to base BC. The instructions call for extra pieces of wood to reinforce AE, EG, GJ, and JC. Given AE = 42.2 cm, find EG to the nearest tenth of a centimeter. 42.2 cm , 40.1 cm , 36.6 cm , or 36.9 cm ??
 2 years ago

henkjan Group TitleBest ResponseYou've already chosen the best response.0
Use pythagoras, find AC (158 cm) use the similarity of the triangles => BC/FC = AC/EC find that EC is about 116 cm Same trick GC => GC is 73.7 cm 11673.7 = EG
 2 years ago

Princess07 Group TitleBest ResponseYou've already chosen the best response.0
So what would be the answer Henkjan? I tried it and I'm confused.
 2 years ago

henkjan Group TitleBest ResponseYou've already chosen the best response.0
I'd go with 42.2
 2 years ago

Princess07 Group TitleBest ResponseYou've already chosen the best response.0
thats why I was just going to say.
 2 years ago

henkjan Group TitleBest ResponseYou've already chosen the best response.0
You can also do it the easier way: BC/FH = AC/EG
 2 years ago

Princess07 Group TitleBest ResponseYou've already chosen the best response.0
This is what I came up with 42.41
 2 years ago

henkjan Group TitleBest ResponseYou've already chosen the best response.0
I got 42.16 if I calculate it at once
 2 years ago

Princess07 Group TitleBest ResponseYou've already chosen the best response.0
Alright thanks, I'm going to stick with 42.2 as the answer then. : )
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.1
dw:1324418020350:dw
 2 years ago

phi Group TitleBest ResponseYou've already chosen the best response.1
triangle R is congruent to triangle S. Both have equal bases (40 cm in your case), with corresponding angles that are equal. So all 3 sides of triangle R = those of S. In particular, if side AE= 42.2, then side EG= 42.2
 2 years ago
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