Question

A) A designer has a circular tablecloth with radius 0.5 m. He wants to sew a fringe around the cloth. The fringe is sold by the tenth of a meter.

(i) What length of fringe is needed?


(ii) One meter of fringe costs $4.70. How much will the fringe cost?


b) A semicircular mat has a diameter of 18 m. What is the area of the mat?

Answer 1

1) 0.5m . 2 = 1 meter
2) 4.70$
3) (r^2) / 2 = 81/2 = 40.5m^2