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
Related Maths GCSE answers
All answers ▸Expand the following brackets: a) 4(x+3) b) 3(x-1)-2(x+5) c) (y-3)^2 d) (y-2)^2 + (y+3)^2
How can you expand brackets? e.g: (x-4)(x+7)
Factorise and solve the quadratic : 3x^2 + 15x +18 = 0
Rationalise the denominator of the following fraction: 9/((root13)-1). Write your answer in its simplest form.