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Vedmedyk [2.9K]
2 years ago
7

If B is the midpoint of AC, what are the coordinates of C?

Mathematics
1 answer:
inna [77]2 years ago
4 0

Answer:

(3,2.5)

Step-by-step explanation:

Since the coordinates of A is (1,1) and the coordinates of B is (5,4), the x coordinates of C would be in the middle of 1 and 5, which can be solved by doing (1+5)/2=3. Therefore the x coordinate of C is 3. The same goes for the y coordinate so it would be (1+4)/2=2.5. Therefore the coordinates of C are (3,2.5)

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Need help with A and C <br><br>please :)
Dennis_Churaev [7]

First step: name the sides according to geometry standards, namely, the sides are named the same lowercase letter as the opposing angle. A revised diagram is shown.

Second step: we need to know the relationships of the trigonometric functions.

cosine(A)=cos(63) = adjacent / hypotenuse = AC/AB .................(1)

sine(A)=sin(63) = opposite / hypotenuse = CB/AB .......................(2)

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Using (2)

BC/AB=sin(63)

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