calculatorsonline.co.uk
Area Obtuse Triangle Calculator
Area of an obtuse triangle from base, a side and the obtuse angle, with the third side.
ruler Free Online Tool
β‘ Instant Results
π Clear Comparison
π 100% Free Tool
Area
Compare Your Options And Get Clear Answers
Area of an obtuse triangle from base, a side and the obtuse angle, with the third side.
Area Obtuse Triangle Estimator
Enter your numbers below for an instant estimate.
0
π‘ Tip: Area = 1/2 a b sin(C).
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Area Quick Guide
Typical values for reference.
| a | b | C deg | Area |
|---|---|---|---|
| 5 | 5 | 100 | 12.310 |
| 9 | 6 | 120 | 23.383 |
| 12 | 8 | 135 | 33.941 |
| 10 | 7 | 150 | 17.500 |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Area Obtuse Triangle Calculator FAQ
Answers to common questions about this calculator.
One angle larger than 90 degrees.
Outside the triangle for the obtuse angle sides.
Area = 1/2 a b sin(C).
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.