7 cm * 4 cm * 3 cm
= 7 * 4 * 3 * cm * cm * cm
= 84 cm3
Assuming it is 4cm x 4cm, then there would be 16 1cm x 1cm squares. * * * * * But, there are also 9 2cm x 2cm squares, 4 3cm x 3cm squares and 1 4cm x 4cm square. That makes 30 in all.
The area is 12 cm2.
That would have to be cubic cm. 216 of them.
12 cc
Square side 3cm. Rectangle 2cm x 4cm. Equilateral triangle side 4cm.
22 cm
Assuming it is 4cm x 4cm, then there would be 16 1cm x 1cm squares. * * * * * But, there are also 9 2cm x 2cm squares, 4 3cm x 3cm squares and 1 4cm x 4cm square. That makes 30 in all.
24 cm3
The area is 12 cm2.
Mean = sum(X)/n = 15cm/5 = 3cm
24cm. cubed
12 cc
That would have to be cubic cm. 216 of them.
3 x 4 x 5 = 60cm3
The perimeter is the addition of the all the sides of the shape. For example if a rectangle has two sides which are 4cm and two sides which are 7cm, then the perimeter will be 4cm+4cm+7cm+7cm. The perimeter would therefore be 22cm. The area of a shape is gotten by multiplying the length and breadth of the shape. For example, in a rectangle witrh the same measurements above, the area will be 4cm x 7cm and that would 28cm. You have to use the square sign but I can't do that here.
Square side 3cm. Rectangle 2cm x 4cm. Equilateral triangle side 4cm.
To calculate the density, you need to know the mass of the object. Density is mass divided by volume. Once you have the mass, you can plug it into the equation with the given dimensions of 4cm x 2cm x 3cm to find the density in g/cm^3.