How do I know whether to use sin, cos, or tan in trigonometry?
Label the sides of your triangleHypotenuse is the longest (opposite right angle)Opposite is opposite the given angleAdjacent is next to the given angleTwo are useful, one is irrelevant. Cross out the one that we do not know, or are not looking for.Two sides will remain labelled. Write out the SOH CAH TOA triangles and see which contains these two sides.This is the triangle you will use for the calculation.
CH
Related Maths GCSE answers
All answers ▸If A is divided by B, the result is 5/7. If B is divided by C, the result is 4/5. What is the result of A divided by C ?
I can't figure out this question to do with VAT. VAT is charged at 20%. A TV is for sale for £650 inc. VAT in Good Electronics and the same TV is for sale £495 exc. VAT in Wright's Electricals, where is it cheaper?
A curve has the equation y=x^2+4x+4 and a line has the equation y=2x+3. Show the line and curve have only one point of intersection and find its coordinate..
Find the coordinates of the point where lines 3x+5=y and 6y+x=11 intersect