## Protractor Usage

Subject: Mathematic | Topics:

Principle objective of this lecture is to present on Protractor Usage. To use a protractor to: measure acute and obtuse angles to the nearest degree; draw acute and obtuse angles to the nearest degree. Protractors usually have two sets of numbers going in opposite directions. A protractor usually has two scales, starting at zero at opposite ends. The animation shows how to use both scales. The two angles are vertical angles and this also verifies that vertical angles are congruent.

### Mental Math with Tricks and Shortcuts

Mental Math with Tricks and Shortcuts Addition Technique: Add left to right 326 + 678 + 245 + 567 = 900, 1100, 1600, 1620, 1690, 1730, 1790, 1804, & 1816 Note: Look for opportunities to combine numbers to reduce the number of steps to the solution. This was done with 6+8 = 14 and 5+7 [&hellip.....

### Define and Discuss on Central Limit Theorem

principle purpose of this article is to Define and Discuss on Central Limit Theorem. Here explain Central Limit Theorem with mathematical examples. The central limit theorem states that even if a population distribution is usually strongly non‐normal, its sampling distribution of means is goi.....

### Discuss on Keywords for Mathematical Operations

Primary objective of this article is to Discuss on Keywords for Mathematical Operations. Here explain Keywords for Mathematical Operations in different language point of view. The initial step in solving the mathematical word problem is usually always in order to read the problem. Every one nee.....

### Define and Discuss on Tangent Identities

Primary objective of this article is to Define and Discuss on Tangent Identities. Here explain Tangent Identities in Trigonometry point of view. Formulas with the tangent function can be produced from similar formulas involving the sine and cosine. The preceding three cases verify three formul.....

### Discrete Mathematics and its Applications based on Trees

Primary objective of this lecture is to analysis Discrete Mathematics and its Applications based on Trees. A tree is often a connected undirected graph without any simple circuits. Brief hypothesis: An undirected graph is often a tree if and only if there is a unique simple way between any two .....