David bought a poster for an art project. the poster is 2.7 ft wide and 3.9 ft tall. what is the area of the poster? enter your answer as a decimal in the box.

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Ответ:

ashleyrover11

15.03.2020

Mathematics

Step-by-step explanation:

$\cos \: 60 \degree = \frac{x}{11} \\ \\ \therefore \: \frac{1}{2} = \frac{x}{11} \\ \\ \therefore \: x = \frac{11}{2} \\ \\ \: \: \: \: \: \: \huge \red{ \boxed{\therefore \: x = 5.5}} \\$

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