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# PLEASE GIVE ME ALL THE FORMULAS OF AREA AND PERIMETER OF ALL THE FIGURES AS I 'M HAVING XAM TOMMORROW..... PLEASE AS EARLY AS POSSIBLE....

Asked by Mohammad Atif(INTERNATIONAL INDIAN SCHOOL) , on 30/10/13

BEST ANSWER Certified by MeritNation Expert

area of square=side*side

area of circle= π r 2

area of parallelogram= base*height

area of triangle= 1/2* base*height

perimeter of square=4*side

Circumference of circle = 2π r

Posted by Chocogirl(Dr Ulhas Patil English MediunCBSE School) on 5/11/13

This conversation is already closed by Expert

perimeter:

rectangle= 2(l+b)  square: 4a  you can find for other shapes by adding the values on all sides

area:

square: L square  rectangle:b multiplied by h

i have given for the cmmon shapes used....

Posted by Meghna Maggie(vels) on 3/3/13

i 'm so sorry.. i only got this much from my book.. sorry

Posted by Meghna Maggie(vels) on 3/3/13

Area of square- s*s

rectangle- l*b

parallelogram-  b*h

triangle- half(1/2)*b*h

circle- πr   2

Perimeter of square- s*4

rectangle-2(l+b)

triangle- s+s+s

Circumference of circle-2π r

Rest i will give tomorrow!

Posted by Sisi Aka Amelia Chan(GURU KRIPA DIVINE GRACE PUBLIC SCHOOL) on 3/3/13

Area of rhombus-(1/2*product of diagonals)

Area of right angle-(1/2*product of legs)

Area of equilateral triangle with side a-(sqrt of3/4*a*a)     (note:sqrt is square root and here sqrt is of 3 not 3/4)

Area of isoceles triangle with base b and side a-1/2*b*sqrt a*a-b*b/4      (note:here sqrt is on whole a*a*-b*b/4)

Area of four walls of a room- [2(l+b)*h]

Hope it helps!

Posted by Sisi Aka Amelia Chan(GURU KRIPA DIVINE GRACE PUBLIC SCHOOL) on 4/3/13

Frm where did you get it sahba?

gr8!!!

Posted by Thenga(Seventh Day Adventist Senior Secondary School) on 5/3/13

Don 't all triangles use the formula 1/2 *b*h ??

Posted by Dania Eapen(FAHAHEEL AL-WATANIEH INDIAN PVT. SCHOOL) on 7/3/13

rectangle-

AREA - L*B

PERIMETER- 2*L+B

SQUARE

AREA- side*side

perimeter- 4*side

triangle-

AREA- 1/2  B*h

PERIMETER- sum of all sides

circle-

AREA- pie r square

PERIMETER-2 pie r

hope this helps

Posted by Saketa Vedula(KOKILABEN DHIRUBHAI AMBANI SARASWATI) on 8/3/13

welcome

Posted by Saketa Vedula(KOKILABEN DHIRUBHAI AMBANI SARASWATI) on 10/3/13

area of square=side*side

area of circle= π r 2

area of parallelogram= base*height

area of triangle= 1/2* base*height