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ABCD is a square of side 10 cm. Each side of the square is a tangent to the circle. Work out the total area of the shaded regions in terms of . Give your answer in its simplest form.

Here it's best to start this question off by drawing a diagram.

Draw a square with each side having a length of 10cm and a circle which touches each side of the square only once (as eacn side of th...

BM
Answered by Benedicty M. • Maths tutor
15961 Views

What is Pythagoras' Theorem and how is it used in exam questions?

Pythagoras' Theorem is an equation used to give us more information about right angled triangles. The theorem itself looks like this: a2

TD
Answered by Tutor96690 D. • Maths tutor
2935 Views

Solve the simultaneous equation 2x-4y=8 and 3x+3y=-15

Set 2x-4y=8 as equation 1, and 3x+3y=-15 as equation 2. Multiply equation 1 by 3 and equation 2 by 4 so they look like 6x-12y=24 and 12x+12y=-60. Now add the two equations and you get 18x=-36 or x=-2. Sub...

DL
Answered by Daniel L. • Maths tutor
3713 Views

If Q = P / (R (4 – t)), calculate the value of Q when P = 36, R = 3 and t = –2

So seeing as you are given the values for P, R and t, the first thing you need to do is substitute the letters for their given numbers into the equation: Q = (36) / ((3)(4 - (-2)) Now expand out the b...

RB
Answered by Rosie B. • Maths tutor
4085 Views

Write x/(x-1) - x/(x+1) as a single fraction in its simplest form (Edexcel GCSE 2016)

The key concept to answering this question is to notice that you need a common denominator for both fractions in order to subtract and simplify them. Clearly the two denominators: (x-1) and (x+1) are not ...

FK
Answered by Fritz K. • Maths tutor
9176 Views

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