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Calculate the area of a circle where the circumference of the circle and sides of the square are tangential at 4 points.

Note this is:AQA GCSE Mathematics (8300) June 2017Paper 1: Non-Calculator 8300/1H - HigherQuestion 12 The area of a square is its base multiplied by its height. In our case this gives an area containing mult...
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Answered by Lewis S. • Maths tutor
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What is 3.25 plus 3 and 3/4?

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Answered by Kelan T. • Maths tutor
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A plane flew from Frankfurt to Hong Kong. The flight time was 10hours 45minutes. The average speed was 852km/h. Work out the distance the plane flew.

Approaching this question, I firstly begin by reading the question carefully and determining what it is that needs to be calculated. The next stage is writing down any important information stated in the que...
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Answered by Charlotte O. • Maths tutor
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What does differentiation actually do?

Differentiation allows you to find the rate of change of a variable relative to another, which is basically the gradient. So if you had a speed-time graph, finding the amount that speed changes over a given ...
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Answered by Kourosh S. • Maths tutor
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Find the equation of the tangent to the circle x^2 + y^2 + 10x + 2y + 13 = 0 at the point (-3, 2)

First, what is a tangent? A line which touches a circle (or ellipse) at just one point. In our case (-3,2) As it touches the line at one point, it is perpendicular the radius at (-3,2). Which implies that th...
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Answered by Patrick D. • Maths tutor
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