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A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
Find the cosine and sine of 180°. round your answers to the nearest hundredth if necessary.
Solution:
We have to find the cosine and sine of 180°.
We know that, in the unit circle the coordinates of the point belong to the x-axis for an angle equal to 180° is (-1, 0).
So, x = 1 unit y = 0 units.
Applying Pythagoras theorem,
h = √(12 + 02)
h = 1
Now, cos 180° = x/h
= 1/1
cos 180° = 1
sin 180° = y/h
= 0/1
sin 180° = 0
Therefore, cosine 180° is 1 and sine 180° is 0.
Find the cosine and sine of 180°. round your answers to the nearest hundredth if necessary.
Summary:
The cosine and sine of 180° round to the nearest hundredth is 1 and 0.
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