List of Geometry Formulas

SHAPES | FORMULAS |
---|---|

2. Triangle | Perimeter, P = a + b + c Area, A = ½ bh Height, h = 2(A/b) Where, a,b,c are the sides of a triangle. |

3. Rectangle | Perimeter = 2(l + w) Area = lw Diagonal, d = √(l^{2} + w^{2}) Where, l = length of a rectangle w = width of a rectangle |

y = mx + b is **the slope intercept form of writing the equation of a straight line**. In the equation 'y = mx + b', 'b' is the point, where the line intersects the 'y axis' and 'm' denotes the slope of the line. The slope or gradient of a line describes how steep a line is.

**Here are the most important and useful area formulas for sixteen geometric shapes:**

- Square area formula: A = a²
- Rectangle area formula: A = a * b.
- Triangle area formulas:
- Circle area formula: A = πr²
- Circle sector area formula: A = r² * angle / 2.
- Ellipse area formula: A = a * b * π

protractor, any of a group of instruments used **to construct and measure plane angles**. The simplest protractor comprises a semicircular disk graduated in degrees—from 0° to 180°. It is an ancient device that was already in use during the 13th century.

These coordinates can be determined by **taking the average of the x and y coordinates of each point**. For example, the coordinates for the midpoint M (x,y) between points P (2,5) and Q (4,3) are x = (2 + 4)/2 = 3 and y = (5 + 3)/2 = 4.

**analytic geometry, also called coordinate geometry**, mathematical subject in which algebraic symbolism and methods are used to represent and solve problems in geometry. The importance of analytic geometry is that it establishes a correspondence between geometric curves and algebraic equations.

**Basic algebra formula**

- a
^{2}– b^{2}= (a – b)(a + b) - (a + b)
^{2}= a^{2}+ 2ab + b^{2} - a
^{2}+ b^{2}= (a + b)^{2}– 2ab. - (a – b)
^{2}= a^{2}– 2ab + b^{2} - (a + b + c)
^{2}= a^{2}+ b^{2}+ c^{2}+ 2ab + 2bc + 2ca. - (a – b – c)
^{2}= a^{2}+ b^{2}+ c^{2}– 2ab + 2bc – 2ca. - (a + b)
^{3}= a^{3}+ 3a^{2}b + 3ab^{2}+ b^{2} - (a – b)
^{3}= a^{3}– 3a^{2}b + 3ab^{2}– b^{3}

The '4 rules' (**addition, subtraction, multiplication and division**) are at the heart of calculation and problem solving. Over the years a range of teaching methods has been adopted by schools and it is sometimes the case that parents' experiences are not the same as those of their children.

List of Geometry Formulas

SHAPES | FORMULAS |
---|---|

2. Triangle | Perimeter, P = a + b + c Area, A = ½ bh Height, h = 2(A/b) Where, a,b,c are the sides of a triangle. |

3. Rectangle | Perimeter = 2(l + w) Area = lw Diagonal, d = √(l^{2} + w^{2}) Where, l = length of a rectangle w = width of a rectangle |

Practical Geometry entails learning about drawing tools such as a scale, protractor, and a pair of compasses, as well as how to draw lines, line segments, perpendicular lines, angles, and circles using these tools.

Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, **SA=2lw+2lh+2hw**, to find the surface area.

Holes in a metal or semiconductor crystal lattice can move **through the lattice as electrons can**, and act similarly to positively-charged particles. They play an important role in the operation of semiconductor devices such as transistors, diodes and integrated circuits.

Basic probability topics are:

Addition Rule of Probability | Binomial Probability |
---|---|

Compound Events | Compound Probability |

Conditional Probability | Complementary Events |

Dependent Events | Experimental Probability |

Independent Events | Multiplication Rule of Probability |

Alphanumeric series questions are **a combination of numbers, alphabets and symbol-based series which candidates need to answer the questions based on the series**. One of the most frequently asked topics in the various Government exams, the alphanumeric series general cover 2-3 questions in the reasoning ability section.

The Caribbean Sea is an **oceanic sea** largely situated on the Caribbean Plate. The Caribbean Sea is separated from the ocean by several island arcs of various ages. The youngest stretches from the Lesser Antilles to the Virgin Islands to the north east of Trinidad and Tobago off the coast of Venezuela.

**List of top Banking Jobs in India is as follows:**

- SBI PO.
- RBI Grade-B Officer.
- NABARD Grade A & B Officer.
- RBI Assistant.
- NABARD Development Assistant.
- IBPS PO.
- IBPS RRB PO.
- SBI Clerk.

Oscillometry is **the blood pressure (BP) measurement principle of most automatic cuff devices**. The oscillogram (which is approximately the blood volume oscillation amplitude-external pressure function) is measured, and BP is then estimated via an empirical algorithm.

Just **measure time taken by the train from 1 stone to other using stopwatch.** **Now divide 360 by the time u got on stopwatch, u'll get speed in km/hr**. E.g. If u get 4 sec, then divide 360 by 4. Which is 90 km/hr.

BODMAS rule is **an acronym to help children to remember the order of operations in calculations**. Operations are simply the different things that we can do to numbers in maths. It stands for, 'Brackets, Order, Division, Multiplication, Addition, Subtraction. '

Dobereiner stated in his law of triads that **the arithmetic mean of the atomic masses of the first and third element in a triad would be approximately equal to the atomic mass of the second element in that triad**.

Protecting a power supply and its load from each other's faults requires components and functions such as the **fuse, undervoltage lockout, crowbars, and clamps**. Power protection is like insurance: You pay for it, yet hope you don't need it.

Dated : 16-May-2022

Category : Education