How do you calculate the sum of all internal angles of a regular polygon?
Use the formula (n-2)*180 where n is the number of sides on the polygon.
BC
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All answers ▸Solve the simultaneous equations A and B: [A] 2x + y = 18 [B] x - y = 6
A game consists of 5 cups turned upside down, under one of the cups is a prize. 5 friend's pick a cup in turn and lifts it up, if they get the prize, they win , but if not, the cup is removed and the next friend picks. What position is it best to pick?
Expand and simplify (x-2)(x-4)
Find the equation of the line passing through the point ( 2, −3) which is parallel to the line with equation y + 4x = 7