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2 years ago

Work out the size of angle a AB = 11cm AC = 9cm

Mathematics

1 answer:

Papessa [141]2 years ago

8 0

Step-by-step explanation:

simply use trig ( cos)

so cosx°= 9/11

now do cos^-1 x°(9/11) in a calculator to find the value of the angle

that will result in 35.09°

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