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NemiM [27]
3 years ago
13

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Mathematics
1 answer:
bezimeni [28]3 years ago
6 0

Answer:

BC≈1.71

Step-by-step explanation:

The cosine of an angle is the adjacent side relative to that angle divided by the hypotenuse.

cos(70)=BC/5

BC=cos(70)*5≈1.71

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Step-by-step explanation:

Notice that the area of the outer square is given by the square of it side (a).Then the outer area is given by: a^2

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