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 ▸

Divide 711 in the ratio 4:5


what is the determinant of a 2x2 matrix


White paint costs £2.80 per litre. Blue paint costs £3.50 per litre. White paint and blue paint are mixed in the ratio 3 : 2 Work out the cost of 18 litres of the mixture.


There are n sweets in a bag, 6 are orange, the rest yellow. Two sweets are taken out individually without replacement. The probability of which is 1/3. show n²-n-90=0