From 360bee396e858d685e07b203de464d9b28749598 Mon Sep 17 00:00:00 2001
From: Chengwuyi <3394813085@qq.com>
Date: Sat, 30 May 2026 22:10:56 +0800
Subject: [PATCH] =?UTF-8?q?=E4=B8=8A=E4=BC=A0=E6=96=87=E4=BB=B6=E8=87=B3?=
 =?UTF-8?q?=20'w4'?=
MIME-Version: 1.0
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---
 w4/Triangle.java | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 w4/Triangle.java

diff --git a/w4/Triangle.java b/w4/Triangle.java
new file mode 100644
index 0000000..4e1e064
--- /dev/null
+++ b/w4/Triangle.java
@@ -0,0 +1,17 @@
+public class Triangle extends Shape {
+    private double base;
+    private double height;
+
+    public Triangle(double base, double height) {
+        this.base = base;
+        this.height = height;
+    }
+
+    public double getBase()       { return base; }
+    public double getTriHeight()  { return height; }
+
+    @Override
+    public double getArea() {
+        return 0.5 * base * height;
+    }
+}