Transum breaking news is available on Twitter and if that's not enough there is also a Transum Facebook page.Īnswer the questions as you find your way through the tunnels. You can listen to the podcast while you are commuting, exercising or relaxing. The newsletter is then duplicated as a podcast which is available on the major delivery networks. The PICTURE is such an aid to remembering where each number or group of numbers is - my pupils love it!Įach month a newsletter is published containing details of the new additions to the Transum website and a new puzzle of the month. "This is a great memory aid which could be used for formulae or key facts etc - in any subject area. "I have used your starters for 3 years now and would not have a lesson without one! Fantastic way to engage the pupils at the start of a lesson."Ĭomment recorded on the 14 September 'Starter of the Day' page by Trish Bailey, Kingstone School: AreĬomment recorded on the 16 March 'Starter of the Day' page by Mrs A Milton, Ysgol Ardudwy: The people who enjoy how mystifying, puzzling and hard it is. Mathematicians are not the people who find Maths easy they are Give your answer in square metres to nearest square metre. What did he calculate the surface area to be? Give your answer to the nearest square metre.Ī cylindrical telegraph pole was ten times as tall as it was wide.Ĭalculate the curved surface area of the pole if it's radius was 30cm. He estimated that the log was a cylinder with a length of 12 metres and diameter 70 centimetres. Give your answer to the nearest square centimetre.Ī lumberjack needed to calculate the surface area of a log. Calculate the area of the painted region if the length of the tube is 31cm and the diameter of the tube is 6cm. All of its external surface area except one of the circular ends is painted red. Give your answer to three significant figures.Ī cylindrical tube is used to store circular salted potatoe crisps. Give your answer to the nearest square centimetre. Give your answer to the nearest square centimetre.įind the surface area of a solid cylinder if the diameter of the circular end is 90cm and its length is 38cm. 1įind the surface area of this solid cylinder if the radius of the circular top is 45cm and its height is 45cm. This is level 4 Find the surface area of a variety of cylinders. You need just two measurements: the diameter of the base and it's height, but the calculus is more involved than most of the other simple bodies.Menu Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7 Level 8 Level 9 Exam Help The surface area of a cone is one of the most complicated and it is where the need for a calculator becomes more apparent. The surface area formula for a cone, given its diameter (or radius) and height is π x (diameter / 2) 2 + π x (diameter / 2) x √ ((diameter / 2) 2 + (height 2)), where (diameter / 2) is the radius of the base (d = 2 x r), so another way to write it is π x radius 2 + π x radius x √ (radius 2 + (height 2)), as seen in the figure below: To find the SA simply multiply 4 times 3.14159 times the radius square. π is, of course, the well-known mathematical constant, about equal to 3.14159. Visual on the figure below:Ī sphere's surface area can be calculated just by knowing its diameter, or radius (diameter = 2 x radius). The surface area formula for a sphere is 4 x π x (diameter / 2) 2, where (diameter / 2) is the radius of the sphere (d = 2 x r), so another way to write it is 4 x π x radius 2. to find the surface area of a cube with a side of 3 inches is to multiply 3 x 6 = 18 square inches. side 2 is the surface of one of the sides, and since the cube has 6 equal sides, multiplying by 6 gives us the total cube surface area. This calculation requires only one measurement, due to the symmetricity of the cube. The surface area formula for a cube is 6 x side 2, as seen in the figure below: The result from our surface area calculator will always be a square of the same unit: square feet, square inches, square meters, square cm, square mm. In all surface area calculations, make sure that all lengths are measured in the same unit, e.g. Below are the formulas for calculating surface area of the most common body types. How to calculate the surface area of a body?ĭepending on the type of body, there are different formulas and different required information you need to calculate surface area (a.k.a.
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