直角三角形計算機
ピタゴラスの定理と三角関数を使用して、直角三角形の欠けている辺と角度を計算します。
直角三角形計算機 gives you a faster way to work through practical calculation scenarios without rebuilding the same calculation from scratch every time. Start with 辺A（対辺） and 辺B（隣辺） and use the live outputs to estimate 角度B（辺Bの対角）, 角度A（辺Aの対角）, and 辺C（斜辺） in one pass. This page is built to help you compare scenarios quickly, validate rough assumptions, and move into a related calculator when you need a second angle on the same problem.
Use The Calculator In A Few Steps
Work through the inputs deliberately, then compare outputs instead of relying on a single scenario.
Scenario Checks
Use these examples to verify the behavior of the calculator before you run your own values.
What Users Usually Need Next
Keep the calculator open while you skim these answers so you can test the scenario that matters.
Related Calculators
These links are chosen to deepen the session and answer the next likely question without sending the user back to search.