ultimatestate23 ultimatestate23

17-03-2021
Mathematics

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Construct triangle ABC such that AB = 8cm, BC = 6.5 cm and angle ABC = 80 degree. Measure and write down the length of AC.

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thebecks thebecks

17-03-2021

Answer:

AC = 9.39 cm

Step-by-step explanation:

sin 80 = m/8

m = 7.88

cos 80 = n/8

n = 1.39

p = 6.5 - 1.39 = 5.11

AC² = 7.88² + 5.11²

AC = 9.39 cm

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