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weeeeeb [17]
3 years ago
10

The diagram shows a wedge in the shape of a prism angle BCF is a right angle A string runs diagonally across the wedge from Ato

F Calculate the length A F Give your answer correct to 3 significant figures

Mathematics
1 answer:
dangina [55]3 years ago
8 0

Answer:

  • 19.3 cm

Step-by-step explanation:

<u>Use Pythagorean theorem to calculate:</u>

  • BF = √11² + 5² = √121+25 = √146

<u>Same method for FA, the diagonal of rectangle ABFE</u>

  • FA = √15² + 146 = √225+146 = √371 = 19.3 cm rounded up to 3 significant digits
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