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SOHCAHTOA: A Robotic Arm Introduction Worksheet

SOHCAHTOA Reference Sheet

Example: Imagine you have a robotic arm with an opposite side (vertical lift) of 4 cm and an adjacent side (horizontal distance) of 3 cm. You want to find the angle (θ) of the arm's joint.

1. Known sides: Opposite (4 cm) and Adjacent (3 cm).

2. Trig function: Use Tangent (TOA) because you have the opposite and adjacent sides.

3. Equation: tan(θ)=4/3

4. Inverse function: θ=tan-1(4/3)

5. Calculate: θ≈53.13°

So, the angle of the robotic arm's joint would be approximately 53.13°