Question

I am not entirely sure how to do this question

Answer 1

Step-by-step explanation:

Use the 2 right angled triangles whose bases combine to make D.

The part of the base with the 45 degree triangle can be represented as $h\cot{45^o}$

Similarly the part of the base in the 75 deg triangle can be represented as $h\cot {75^o}$

Now we know the total of these two parts to be D

$D=h\cot{45^o}+h\cot{75^o}\\h=\frac{595}{\cot {45^o}+\cot{75^o}}$

I think you can take it from here.

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