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Princess07
 4 years ago
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 ??
Princess07
 4 years ago
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 ??

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Princess07
 4 years ago
Best ResponseYou've already chosen the best response.0In 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 ??

henkjan
 4 years ago
Best ResponseYou've already chosen the best response.0Use 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

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

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

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

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

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

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

phi
 4 years ago
Best ResponseYou've already chosen the best response.1triangle 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
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