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28-12-2018
Mathematics

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Find the area of rectangle PLUM

If entering your answer as a decimal, round your final answer to the nearest hundredth.

Find the area of rectangle PLUM If entering your answer as a decimal round your final answer to the nearest hundredth class=

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DJdumpling DJdumpling

28-12-2018

PL= sqrt(4^2+12^2)=4sqrt(1+9)=4sqrt(10)

Using similarity gives that AM=4/3.

ML=40/3

[PLMU]=40/3 * 4 = 160/3 (53.33)

Or

PM= sqrt(4^2+16/9)=sqrt(160/9)=4sqrt(10)/3

4sqrt(10)*4sqrt(10)/3=160/3 or approximately 53.33

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