amunnik04
22.02.2021 •
Mathematics
In triangle ABC, the size of angle B is 4 times the size of angle A, and the size of
angle C is 1° less than 5 times the size of angle A.
Find the size of the angles.
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Ответ:
They say angle B is 5 times angle A, so that means the measure of angle B is actually 5a. The size of angle C is 5 degrees less than 4 times the size of A, so that translates to 4a-5. Now, to find the value of a, we need to remember that all the angles in a triangle add up to 180 degrees.
hope it helps!
Ответ:
Maria first made an error in step 3.
Maria can correct her error by multiplying 136.49 by 1 over 4 before subtracting 3.0625 from it.