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mihalych1998 [28]
2 years ago
10

Give answer to 1 d.p

Mathematics
1 answer:
KATRIN_1 [288]2 years ago
8 0

Answer:

AB ≈ 5.6 cm

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos62° = \frac{adjacent}{hypotenuse} = \frac{AB}{BC} = \frac{AB}{12} ( multiply both sides by 12 )

12 × cos62° = AB , then

AB ≈ 5.6 cm ( to 1 dec. place )

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