Finding the area of any triangle

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GCSE Maths revision tutorial video.

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For the last question, one of the length (10) is in metre. Therefore, woudn't the answer be 3900 cm squared (to 3sf) after converting the 10 m into 1000cm.

panushalimbu
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How are you going to calculate the Area if the angle is not an included angle?

Nobars-zq
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Why don't you just use the 1/2*base*height? By the way love your vids

sebastian
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Why I'm getting the wrong answer, even though everything right in the calculator

mendax