What are the ratios for SIN A and COS A
1 answer:
Answer:
A
Step-by-step explanation:
A good trick for trigonometric functions is to remember SOHCAHTOA:
Sin=<u>O</u>pposite over <u>H</u>ypotenuse
Cos=<u>A</u>djacent over <u>H</u>ypotenuse
Tan=<u>O</u>pposite over <u>A</u>djacent
The red arrows on the attachment indicate where opposite, hypotenuse, and adjacent are for angle A.
So in this case, the sin of angle A (opposite over hypotenuse) would be and cos A (adjacent over hypotenuse) would be
.
I hope this helps!
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Answer:
The answer is "12 inches".
Step-by-step explanation:
Please find the image file of the graph.
We know so because the triangle is isosceles.
when
is called by
.
We know that since E and D are tangent points to a circle.
They have since D and F are tangent points only to circle.
Thus, if the perimeter is 32, the following is the result:
Therefore the length of
Given that the triangles are similar.
When triangles are similar, all three pairs of corresponding sides are in the same ratio.
Similarly in the given triangles, the ratio of the corresponding sides are equal.
Cross multiplying, we get
Dividing both sides of the equation by -4.
So, we get
x = 7.