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12-01-2018
Mathematics

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how to determine the length of RS to the nearest tenth of a centimetre

how to determine the length of RS to the nearest tenth of a centimetre class=

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12-01-2018

sin 39 = 8.9 / RT

RT = 8.9 / sin 39 = 14.14

cos 54 = RS / 14.14

RS = 14.14 * cos 54 = 8.3 cm Answer

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