Find the area of a sector with a radius of 5cm and an angle of 120 degrees?
pi r r
pi 5x5
25pi = 360 degrees
120/360 x 25pi = 25/3 pi
Teaching Points:
Area of a circle + other formalue for circumfrence
Degrees of a circle
Fractions
Dealing with Pi
Terminology of sector + cord + tangent ect
AP
Related Maths GCSE answers
All answers ▸Express 216 as a product of its prime factors.
Why does the quadratic formula give solution to quadratic equation
A group of 44 pupils were asked if they owned a phone or a tablet. 5 people are known to own both 3 said they only owned a tablet 17 said they owned at least a phone A student is picked a random, what is the probability that the student doesn’t have
(2x + 3)/(x-4) - (2x - 8)/(2x + 1) = 1