App description

In the same triangle, the triangle with two equal sides is an isosceles triangle.

In the same triangle, the triangle with two equal base angles (base angle refers to the bottom two corners of the triangle) is an isosceles triangle.

In the same triangle, the triangle whose top angle bisector, center line on bottom edge and height on bottom edge coincide with each other is isosceles triangle. (abbreviation: three lines in one).

Usage example

Bottom edge: 1

Input value: 6

Select the numeric types: height at bottom

Click "calculate" and output the result

Isosceles triangle area: 3

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