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Q: What is the area of a rectangle 12cm x 6cm?

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A=lxw 2cm x 6cm=12cm

12cm x 6cm x 4cm = 288 cubic centimetres

The area would be 60 cm2

120 sq cm

Area = 6*18 = 108 square cm

To calculate the volume, multiply the length x width x height. volume = 12cm x 6cm x 4cm = 288cm3

The area of rectangle is : 51.0

Area of a triangle = 1/2 (Base x Height) Example: Width 13cm, Height 5cm, Base 12cm then; Area=1/2(12cm x 5cm) Area=6cm x 5cm Area=30cm2

area = length x width area = 12 x 10 = 120 square cm

Fist lets start by reviewing what the area of a pyramid is. Volume of a pyramid (with a rectangular base) is the Area of the Base x Height x 1/3. Where the 1/3 comes in I don't know but that's the equation. So we have a rectangle with the sides measuring 9cm x 12cm. The area of a rectangle is S1 * S2 so we have an area of 9cm*12cm=108cm2. We are given the height (altitude) as 12 cm so now that we know the area of the base, and the height we can find the volume. V= 108cm2 * 12cm *1/3 V= 1296cm3*1/3 V= 432cm3

To find the area of a rectangle, multiply the length times the width- or 6 x 12 in your case.

Answerfirst you have to make it a square by subtracting 2cms from the length and adding 2cms to the width. That will make it equal to 12cm. The area for the rectangle was 140cm then it increased by 4 because 12cm * 12cm is 144cm. so x = 2 and the area increases by four.

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