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Mathematics

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In the diagram above of ADB where angle B is a right angle. Determine the length of DC to the nearest whole number.

In The Diagram Above Of ADB Where Angle B Is A Right Angle Determine The Length Of DC To The Nearest Whole Number class=

Answer :

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Use tan(angle) = opposite leg/ adjacent leg

BC = tan(45) = x/100

X = tan(45) x 100

X = 100

BD = tan(60) = x/100

X = tan(60) x 100

X = 173

DC = BD - BC = 173-100 = 73

DC = 73

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