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An isosceles triangle ABC has a perimeter of 16cm. AB = x+3, AC = x+4. Calculate the area of ABC.

Find x.2(x+3) + x+4 = 163x + 10 = 16x = 2So: AB = 5cm, BC = 5cm, AC = 6cmThen use '0.5 x base x height' to find area.Base = 6Height use Pythagoras: 5^2 - 3^2 = x^225 - 9 = 16x = 40.5 x 6 x 4 = 12cm^2
AM
Answered by Amelie M. • Maths tutor
4420 Views

Write down 56 as the product of its prime factors.

56 / 2 = 2828 / 2 = 1414 / 2 = 77 / 7 = 1so, 56 = 2x2x2x7 = 2 3 x7Example of a non calculator GCSE paper question, higher tier
MA
Answered by Mehdi A. • Maths tutor
6884 Views

How do you cross-examine poems?

First, read who each poem is written by and when; are they all the same gender poets, is it from the same period of history? This will be your first clue as to why their themes may be similar or different.Th...
HJ
1963 Views

What needs to be included in the essay?

It's important that you are answering and linking back to the essay question at the start and end of each paragraph.Other than that, you need to make a judgement for yourself which you can state clearly in b...
HJ
2307 Views

How do I approach an unseen poem in an exam?

When approaching an unseen poem, it can be very overwhelming! However there are some simple steps to follow that will break the poem down and also will give you a lot to say in an exam response and will help...
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Answered by Ella H. • English tutor
2556 Views