question

Maria has a garden with a radius of 10 m
the garden is a semicircle
Grass costs 5 € per m².
Find the cost of seeding her garden with grass. Give your answer correct to the nearest euro.

Reply 1

DataVenia

Volunteer Team, Clearing and Applications Advisor

Original post by Marinate

Maria has a garden with a radius of 10 m
the garden is a semicircle
Grass costs 5 € per m².
Find the cost of seeding her garden with grass. Give your answer correct to the nearest euro.

Do you know the formula for using the radius of a circle to work out the area of that circle?

This garden isn't in the shape of a circle, but of a semicircle (half a circle).

Once you know the area of the semicircular garden, in metres squares and you know the price of grass per metre squared, you can work out the price of the grass required.

Don't forget to round your answer, as required by the question.