10cm x 7cm x 12cm =840 square cm3
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The perimeter of a shape is the sum of the lengths of all its sides. In this case, the shape is a rectangle with sides measuring 7cm and 10cm. To find the perimeter, you add up all the sides: 7cm + 7cm + 10cm + 10cm = 34cm. Therefore, the perimeter of this shape is 34cm.
Perimeter =7+7+10+10 = 34 cm
The volume of a sphere is given by the formula V =⁴⁄ ₃πr3The volume of a sphere with radius 7cm = ⁴⁄ ₃π73 = 1436.76 cm3 (to 2 dps)
To calculate the volume, multiply the length x width x height. volume = 12cm x 6cm x 4cm = 288cm3
V = 1,000 cm3