a = 5
Side Opposite 30° (a): 5 units; Side Opposite 60° (b): 0 units; Hypotenuse (c): 0 units; Known Side: Side a (opposite 30°)
Hypotenuse (c): 10 units; Side b (opposite 60°): 8.660254038 units
30-60-90 Triangle Calculator
Math0.0(0)
Calculates the sides of a 30-60-90 right triangle given one side length.
More tools:Math & Statistics Calculators
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Side Opposite 30° (a), Side Opposite 60° (b), Hypotenuse (c), and Known Side in the units shown.
Step 2
Read Hypotenuse (c) and Side b (opposite 60°) in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
a = 10
Side Opposite 30° (a): 10 units; Side Opposite 60° (b): 0 units; Hypotenuse (c): 0 units; Known Side: Side a (opposite 30°)
Hypotenuse (c): 20 units; Side b (opposite 60°): 17.32050808 units
c = 10
Side Opposite 30° (a): 0 units; Side Opposite 60° (b): 0 units; Hypotenuse (c): 10 units; Known Side: Hypotenuse c
Hypotenuse (c): 10 units; Side b (opposite 60°): 8.660254038 units
Explore the topic
Explore More Math & Statistics Calculators
Use calculators for algebra, geometry, trigonometry, probability, statistics, averages, z-scores, tests, and graphing tasks.
People Also Calculate
Related Calculators
Continue with another tool on a related topic.
Math
Floating-Point Calculator
This calculator demonstrates the behavior of floating-point numbers in calculations and highlights potential precision issues due to the way computers store and manipulate these numbers. It allows you to input two numbers and an operation, then displays the result and the difference between the calculated result and a more precise value.
1,288 viewsOpen calculator
Math
Polynomial Graphing Calculator
Visualizes the graph of a polynomial function by calculating and plotting points.
1,205 viewsOpen calculator
Math
Arcsin Calculator (Inverse Sine)
Calculates the angle whose sine is a given number. The result is in radians.
1,156 viewsOpen calculator
Math
Weighted Average Calculator
Calculates the average where some data points contribute more weight than others.
1,154 viewsOpen calculator