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Below link may help.

You need to memorize the basic formulas and it will be easy.

pythagorean theorem

c² = a² + b²

Sine Theta (sin θ) = opposite/hypotenuse = a/c

Cosine Theta (cos θ) = adjacent/hypotenuse = b/c

Tangent Theta (tan θ) = opposite/adjacent = a/b

Cotangent Theta (cot θ) = adjacent/opposite = b/a

Secant Theta (sec θ) = hypotenuse/adjacent = c/b

Cosecant Theta (csc θ) = hypotenuse/opposite = c/a

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Q: Any interesting way in teaching right angle trigonometry?

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By using trigonometry or using Pythagoras' theorem for a right angle triangle.

By using trigonometry

A right triangle is a triangle in which one angle is a right angle (that is, a 90-degree angle). The relation between the sides and angles of a right triangle is the basis for trigonometry.

adjacent in maths means the angle on a triangle next to a right angle in trigonometry and pythagoras

By using trigonometry that is applicable to a right angle triangle.

If you have a right triangle, the sine of an angle is the ratio of the opposite side to the hypotenuse.

They are: opposite, adjacent and hypotenuse sides for a right angle triangle

By using trigonometry that is applicable to a right angle triangle.

usually its used to find a missing angle or length of a right triangle. Of course there is more to trigonometry. any way you can use sine, cosine, and tangent, to fine the missing angle or length

Trigonometry is used to find the properties of triangles and Pythagoras' theorem is used to find the lengths and angles of right angle triangles.

They are: scalene, right angle, obtuse, isosceles and equilateral triangles

With Pythagoras' theorem or trigonometry depending on the information you are given.

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