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9966 [12]
2 years ago
8

I really have no idea how do this so an explanation with an answer would be really helpful :)

Mathematics
1 answer:
abruzzese [7]2 years ago
8 0

Answer:

So, BC = 5.6 cm

Step-by-step explanation:

Since its a right angled triangle,

taking 62 as reference angle,

cos62 = b/h

or, cos62 = AB/BC

or, cos62 = AB/12cm

or, cos62×12cm = BC

so, BC = 5.63

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