How do I work out the area of a quarter circle with radius 6cm?

The easiest way to do this is to first work out the area of the whole circle. To work out the area of a circle, the equation is area = πr2 , where r is the radius. So, to work out the area we work out π x 62. For the most accurate answer, we should keep the answer in terms of π . π x 62 = 36π . To calculate the area of a quarter circle, we then need to divide the area by 4, as a quarter circle is 1/4 of a circle. 36π /4 = 9, so the area of the quarter circle is 9π .

CC

Related Maths GCSE answers

All answers ▸

Work out the value of 81^(-1/4) (Non-Calculator)


How do I solve a quadratic equation by factorising?


How do I solve an equation where there are unknowns on both sides of the equation?


A field is 90m x 45m, next to a circular lake, 20m across. For training, the coach says your team can either run around the lake 3 times or run along 2 sides of the pitch and then back along the diagonal. Which run is the shortest?