4cm x 5cm
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Mean = sum(X)/n = 15cm/5 = 3cm
9cm + 5cm + 9cm + 5cm = 28cm
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.
4cm x 5cm
A rectangular prism is just a box or cuboid So the capacity is 5cm x 4cm x 10cm = 200cm3
180cm3
3 x 4 x 5 = 60cm3
Yes (apart from units):If the side of a square is 4cm then itsperimeter is 4cm + 4cm + 4cm + 4cm = 4 x 4cm = 16cm;area is 4cm x 4cm = 16cm2
4 x 5cm = 20cm
22 cm
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An isosceles triangle.
5*3*4 = 60 cm3
4cm-5cm
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