From c41c49df9ca11d6d8d17a31c6b063e8b28774e8e Mon Sep 17 00:00:00 2001
From: harukitosa <13haruki28@gmail.com>
Date: Mon, 29 Mar 2021 22:31:39 +0900
Subject: fix: equalateral triangle

---
 files/ja/web/javascript/reference/global_objects/math/index.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'files/ja/web/javascript/reference')

diff --git a/files/ja/web/javascript/reference/global_objects/math/index.html b/files/ja/web/javascript/reference/global_objects/math/index.html
index 711c071a18..cae897f917 100644
--- a/files/ja/web/javascript/reference/global_objects/math/index.html
+++ b/files/ja/web/javascript/reference/global_objects/math/index.html
@@ -137,7 +137,7 @@ function radToDeg(rad) {
   return rad / (Math.PI / 180);
 };</pre>
 
-<h3 id="Calculating_the_height_of_an_equalateral_triangle" name="Calculating_the_height_of_an_equalateral_triangle">二等辺三角形の高さの計算</h3>
+<h3 id="Calculating_the_height_of_an_equalateral_triangle" name="Calculating_the_height_of_an_equalateral_triangle">正三角形の高さの計算</h3>
 
 <p>二等辺三角形の高さを計算したい場合、側辺の長さが 100 であるとわかっている場合は、<em>隣の角に正接を乗じた長さは、反対側と等しくなる</em>という数式を使用することができます。</p>
 
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