Right Angled Triangle: triangle showing Opposite, Adjacent and Hypotenuse
The triangle of most interest is the right-angled triangle.
The right angle is shown by the little box in the corner.
We usually know another angle θ.
And we give names to each side:
Adjacent is adjacent (next to) to the angle θ
Opposite is opposite the angle θ
the longest side is the Hypotenuse
"Sine, Cosine and Tangent"
The triangle of most interest is the right-angled triangle.
The right angle is shown by the little box in the corner.
We usually know another angle θ.
And we give names to each side:
Adjacent is adjacent (next to) to the angle θ
Opposite is opposite the angle θ
the longest side is the Hypotenuse
"Sine, Cosine and Tangent"