Author: Rahul

In a right-angled triangle, knowing any two sides is enough to work out the third. But the method changes depending on which side is missing. If the hypotenuse is missing you add; if a shorter side is missing you subtract. Getting that one detail right is the whole skill, and this guide walks through both cases. First, Identify What is Missing a and b — the two legs, forming the right angle c — the hypotenuse, opposite the right angle c is always the longest side Missing sideFormulaOperation Hypotenuse (c)c = √(a² + b²)Add the squares Leg (a)a = √(c²…

The hypotenuse is the longest side of a right-angled triangle, sitting directly opposite the 90° corner. If you know the other two sides, you can always work it out — no measuring needed. This guide shows how to find the hypotenuse step by step, with the formula and several worked examples including one that does not give a whole number. Which Side is the Hypotenuse? Base (a) — one side of the right angle Height (b) — the other side of the right angle Hypotenuse (c) — opposite the right angle The hypotenuse is always the longest of the three…

The Pythagoras Theorem starts with a right-angled triangle and tells you about its sides. The converse of Pythagoras Theorem works backwards: it starts with three side lengths and tells you whether the triangle has a right angle at all. It is a simple idea, but a very useful one — it is how builders check that a wall corner is truly square without using any instrument. What is the Converse of Pythagoras Theorem? If the square of the longest side of a triangle equals the sum of the squares of the other two sides, then the triangle is a right-angled…

You already know the Pythagoras Theorem says a² + b² = c². But sometimes the three sides come out as nice whole numbers, with no decimals and no square root left over. These special number sets are called Pythagorean Triples. The most famous one is 3-4-5, and once you know a few of them, many triangle problems become almost instant. Let’s learn what they are and how to find them. What is a Pythagorean Triple? A Pythagorean Triple is a set of three positive whole numbers that fit the Pythagoras Theorem perfectly. Three positive integers a, b and c form…

PHP 8.5 is the newest major release of the PHP language, published by the PHP development team in November 2025. It builds on the performance work of the 8.x series and adds some genuinely useful additions to the language, such as the pipe operator, the #[\NoDiscard] attribute, array_first() and array_last(), persistent cURL handles, and fatal error backtraces that finally tell you where a crash actually came from. This guide will show you how to install PHP 8.5 on Ubuntu 26.04 LTS (Resolute Raccoon). We will use the well-known ondrej/php PPA, which packages every supported PHP branch for Ubuntu and is…

Zabbix is a powerful open-source monitoring tool that helps you keep track of your servers, networks, and applications. Once you have configured Zabbix server in your hosting environment, the next step is to add remote hosts for monitoring. The Zabbix Agent collects data from your server, like CPU load, memory usage, disk space, and running services, and sends it to the Zabbix server for monitoring. This guide will show you how to install the Zabbix Agent on Ubuntu 26.04 LTS (Resolute Raccoon). We will use the official Zabbix 7.0 LTS repository, which provides the newest agent packages built for Ubuntu…

Docker allows you to run applications in lightweight, portable containers. Installing Docker on Ubuntu 26.04 (“Resolute Raccoon”) is straightforward when using the official Docker repository. This ensures you get the latest stable version with full support for Docker Compose and Buildx. Prerequisites A fresh Ubuntu 26.04 LTS installation Sudo or root access Stable internet connection At least 2 GB RAM (recommended) 1. Update Your System Start by updating the package index and upgrading existing packages. sudo apt update && sudo apt upgrade -y 2. Install Required Dependencies sudo apt install ca-certificates curl -y 3. Add Docker’s Official GPG Key sudo…

Ubuntu 26.04 LTS (codenamed Resolute Raccoon) was released on April 23, 2026. It brings major updates including Linux kernel 7.0, GNOME 50, improved security features, and better performance. Upgrading from Ubuntu 24.04 LTS (Noble Numbat) to 26.04 LTS is a significant jump. While possible, the official smooth upgrade path opens after the first point release (26.04.1), expected in early August 2026. Important: Who Should Upgrade & Who Should Wait ✅ Upgrade Now If: You are on Ubuntu 25.10 (interim release) You are a developer, tester, or power user comfortable troubleshooting issues You need the latest kernel, security features, or software…

Terraform continues to dominate the Infrastructure as Code (IaC) landscape in 2026. However, writing, reviewing, and maintaining large Terraform codebases has become increasingly complex and time-consuming. The integration of Artificial Intelligence with Terraform is revolutionizing how teams design, generate, secure, and manage infrastructure. Here are 5 futuristic and practical ways AI is supercharging Terraform workflows today, making IaC faster, safer, and more intelligent. 1. AI-Powered Natural Language to Terraform Code Describe your infrastructure requirements in plain English, and AI tools instantly generate clean, production-ready Terraform code. Example Prompt: “Create a reusable Terraform module for a highly available AWS EKS cluster…

DevSecOps is no longer optional — it’s essential for organizations that want to ship code faster without compromising security. By integrating security tools directly into the CI/CD pipeline, teams can detect vulnerabilities early, reduce risk, and maintain compliance. Here are 10 essential DevSecOps tools that deliver real value across code scanning, dependency management, infrastructure security, containers, and runtime protection. The 10 Essential DevSecOps Tools 1. Snyk — Developer-first SCA, SAST & IaC security 2. SonarQube — Code quality and static security analysis 3. Trivy — Fast, open-source vulnerability scanner for containers & more 4. OWASP ZAP — Popular open-source DAST…