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anonymous
 one year ago
ABCD is a parallelogram. Its diagonal, AC, is 18 inches long and forms a 20° angle with the base of the parallelogram. Angle ABC is 130°. What is the length of the parallelogram’s base, AB?
8.0 in
11.7 in
27.6 in
40.3 in
anonymous
 one year ago
ABCD is a parallelogram. Its diagonal, AC, is 18 inches long and forms a 20° angle with the base of the parallelogram. Angle ABC is 130°. What is the length of the parallelogram’s base, AB? 8.0 in 11.7 in 27.6 in 40.3 in

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0https://gmcprep.owschools.com/media/g_geo_ccss_2014/11/geo_10_a_16_assess_media_7.gif

rhr12
 one year ago
Best ResponseYou've already chosen the best response.0do you know the area of the parallelogram?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1We can say that the half angle located at the upper right would be 30 degrees. We have 2 angles and an included side so we can use the Law of Sines

rhr12
 one year ago
Best ResponseYou've already chosen the best response.0we can eliminate 40 and 26. the confusion is 8 or 11.7.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thats ehat i had first but i wasnt ture so i asked yall

rhr12
 one year ago
Best ResponseYou've already chosen the best response.0is that wrong? I had never did something like that. MAybe @wolf1728 will take you to the end

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1Angle B is 130 degrees side b is 18 inches Angle C is 30 degrees side C = (sin(C) * b)/sin B side C = .5 * 18 / 0.76604 side C = 11.7487337476

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1Well I guess it is 11.7 and you've got the proof right there! :)
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