Math

45 45 90 Triangle Calculator

Solve a 45-45-90 right triangle from a leg.

Calculated Output

Hypotenuse 7.071

Area 12.5

Formula: hypotenuse = leg × √2

Step-by-Step Breakdown

1. Values used:

2. Leg length = 5

4. Hypotenuse = 7.071

5. Area = 12.5

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The math behind it

Both legs are equal; the hypotenuse is leg × √2.

Leg 5 → hypotenuse 7.07.

Half a square?

Yes — it's a square cut along its diagonal.