Distance Formula Problem

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Exercise
1. Find the distance betwixt P(3, 2) in addition to Q(4, 3).
 2. Find the distance betwixt (a, b) in addition to (a+b, a-b).
3. Which indicate is nearest to the origin, (2,3) or (-2,3)?

Section Formula

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Mid Indicate Formula

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Application Of Distance Formula

How volition yous demo that the given 4 points are the coordinates of vertices of a rectangle?
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Area Of Triangle When Coordinates Of Vertices Are Given

Learn to honor the expanse of a triangle when the coordinates of its vertices are given.

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Application Of Department Formula

Let us larn to notice the points of trisection using the Section Formula.

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Application Of Department Formula

In what ratio a betoken divides the bring together of 2 given points?
We role the department formula...
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Find The Error

11 Swell Mathematicians

Today on 11.11.11, I idea of remembering the operate of eleven smashing Mathematicians of the world.

Euclid

Archimedes

Carl Gauss

Euler

Pierre De Fermat

J.L Lagrange

Pythagoras

Ramanujan

Bhramagupta

Fibonacci

Bhaskaracharya

Find The Error

Find the error.

Dated Magic Square

How to brand a Dated Magic Square?

1.    In the offset row, write downwardly the appointment for which you lot desire to practise the Magic square.

Remember to carve upwards the twelvemonth into two. I guide keep taken the appointment every 2d 13.11.2011.

 

2.    Write whatsoever 3 consecutive numbers in the boxes every 2d shown below.

 3.    Calculate the magic constant which is the amount of elements of each row, column, diagonal); past times summing upwards the elements of offset row. Magic constant =13+11+20+11 = 55.

4.    Now, calculate the chemical cistron inwards row2, column 3 past times subtracting the other 3 elements of that sub-square by magic constant.

55 – (20+11+6) = 18.

5.    Now, honour the blank box of column 3 past times subtracting the amount of other elements from magic constant. 55-(20+18+4) = 13.

6.    Follow the same agency to consummate the row 2, column 2 chemical cistron from fundamental sub-square. 55-(18+13+5) =19

7.    2^nd row 1^st column volition survive 55 – (19 + xviii + 6) =12

           4^th row 2^nd column volition survive 55 – (11 + xix + 5) = 20

 8.    4^th row 1^st column volition survive 55 – (11 + xviii + 5) = 21

            4^th row 4^th column volition survive 55 – (13 + xix + 13) = 10

9.    3^rd row 1^st column = 55 – (13 + 12 + 21) =9

            3^rd row 4^th column = 55 – (11 + vi + 10) = 28

Observe that when you lot add together the numbers given inwards each row, each column or fifty-fifty diagonally, you lot instruct the same sum.

Video- Transformations- Reflection

Watch this video to acquire the concept of reflecting a geometrical variety along the y- axis together with the x- axis. Observe carefully what happens to the signs of abscissa together with ordinates inwards both the cases.


Exercise:
Draw whatsoever triangle inwards the II Quadrant together with operate out its reflection along the y- axis also every mo the x- axis. Write the coordinates of novel triangles obtained. Write your observations.

Video Transformations- Reflection Along A Mirror Line

Watch this video to larn how to reverberate a shape in a given mirror line.

Video Transformations- Translation

Learn to interpret a shape. Watch this video.

Video Transformations- Rotation

Visualise the cocept of rotating a kind xc degrees, 180 degrees. Watch this video.

2012, National Mathematics Year

Prime government minister Manmohan Singh declared twelvemonth 2012 equally ‘National Mathematical Year’ equally a tribute to maths sorcerer Srinivasa Ramanujan. PM said that the disclose of competent mathematicians inwards the dry reason is “badly inadequate”. He equally good called for changing the perception that pursuit of mathematics does non Pb to attractive career possibilities. He announced that his birthday - Dec. 22 - would henceforth hold out a National Mathematics Day as well as 2012 would hold out the National Mathematical Year.He was talking inwards a part to hither grade the 125th nativity anniversary of Ramanujan inwards Chennai.

Ramanujan, A Peachy Mathematician

Dear students, As you lot are aware that the twelvemonth 2012, is celebrated every minute National Mathematics Year. Read well-nigh Ramanujan too his contribution inwards Mathematics.

Ramanujan via kwout

Play Alfakodu

Folding Puzzle Challenge!

Fold the rectangle along the lines inward such a means that the squares are inward series lodge from one to 8, amongst pose out one face-up on top. You cannot tear the rectangle, only plication too maybe slightly curvature it. Have fun!

Activity Surface Area Of A Parallelogram

Objective: To give-up the ghost the formula for surface area of a parallelogram past times newspaper cutting together with pasting.

Material required: Dotted paper, duad of scissors, ruler, pencil, glue.

Procedure:

1.Draw a parallelogram on a dotted newspaper . Name it ABCD.

2. Drop a perpendicular from D on AB.

 3. Cut along the perpendicular drawn every minute shown below.

4. Displace the cutting out together with house it following to BC  as shown below.

5. Observe the novel shape. It is a rectangle. Write the area.

Result: Area of a parallelogram = base of operations 10 height