Pi * (3.6 / 2) ^2 = 10.18

Encore Math... | Answered on Sep 21, 2016

i think teachers need to be payed a good wage .. after all they single handed look after 30 kids for like 4 or 5 hrs...

how the fek do they do it my home is a reck after an hour with three..?

how the fek do they do it my home is a reck after an hour with three..?

Encore Math... | Answered on Mar 26, 2015

A pyramid has 5 sides including the base. If the base is a rectangle L long and W wide, its area is L*W.

The other sides are triangles. If the height of the pyramid is H, the triangles that are L wide at the base will have a height of the square root of half of W squared plus H squared, or SQRT((.5*W)^2+H^2) and the two that are W wide at the base will have a height of SQRT((.5*L)^2+H^2). The area of a triangle is .5*height*base, so the total surface two triangles with the same height and base is 2*.5*height*base = height*base.

So, the total surface area of a pyramid L long by W wide by H tall would be:

L*W (the area of the base)

+ L*SQRT((.5*W)^2+H^2) (the area of the 2 triangles with base L)

+ W*SQRT((.5*L)^2+H^2) (the area of the 2 triangles with base W)

Hope this is helpful!

The other sides are triangles. If the height of the pyramid is H, the triangles that are L wide at the base will have a height of the square root of half of W squared plus H squared, or SQRT((.5*W)^2+H^2) and the two that are W wide at the base will have a height of SQRT((.5*L)^2+H^2). The area of a triangle is .5*height*base, so the total surface two triangles with the same height and base is 2*.5*height*base = height*base.

So, the total surface area of a pyramid L long by W wide by H tall would be:

L*W (the area of the base)

+ L*SQRT((.5*W)^2+H^2) (the area of the 2 triangles with base L)

+ W*SQRT((.5*L)^2+H^2) (the area of the 2 triangles with base W)

Hope this is helpful!

Encore Math... | Answered on May 23, 2014

Assuming the base of the pyramid is square ... of length B and the distance from the center of the base of the pyramid to the top of the pyramid is H

Surface area is: 2 x H x B

plus B-square (if you include the base of the pyramid)

Surface area is: 2 x H x B

plus B-square (if you include the base of the pyramid)

Encore Math... | Answered on May 23, 2014

Encore Math... | Posted on May 06, 2014 | Be the first to answer

Any closed figure that is drawn on a (2-D) plane.

Encore Math... | Answered on Dec 18, 2013

False I reckon. The vertices are the angles

Encore Math... | Answered on Dec 18, 2013

The perimeter of a rectangle 4 m by 5 m is 18 m.

Encore Math... | Answered on Nov 06, 2013

It is already in decimal for. Maybe you mean fraction?

0.705=705/1000=(141*5)/(200*5)

After simplification by 5 you get**141/200**

0.705=705/1000=(141*5)/(200*5)

After simplification by 5 you get

Encore Math... | Answered on Oct 22, 2013

Encore Math... | Posted on May 06, 2013 | Be the first to answer

******** i dont know that one ******* **** suker

Encore Math... | Answered on May 18, 2012

Solve 50/360=15/c for c. The solution is c=360*15/50=100 cm

Encore Math... | Answered on Feb 14, 2012

circumference=Pi*D=3.6*Pi cm=11.30973355 about 11.31 cm

Encore Math... | Answered on Feb 14, 2012

Since the 'base' and 'top' of any prism have the same shape, the surface area can be found by

- surface area of prism = 2 * area of base + perimeter of base * H

- surface area = 2LW + 2(L+W)H
- = 2 * 7 * 4 + 2*(7+4)*5
- = 56 + 2 * 11 * 5
- = 56 +110
- = 166 sq cm

Encore Math... | Answered on Sep 15, 2011

Surface area of any prism is the sum of the areas of the sides

A trapezium is A = h(a + b)/2

h is the perpendicular height, a and b are the parallel sides

A trapezium is A = h(a + b)/2

h is the perpendicular height, a and b are the parallel sides

Encore Math... | Answered on Aug 18, 2011

Hi,

What is the windows error ???

What is the windows error ???

Encore Computers... | Answered on Aug 26, 2020

Check the drivers if properly installed

Encore Computers... | Answered on Jan 21, 2020

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