What would you like me to draw and label?
Let’s assume the point in the centre is the origin of the circle.
This means the radius is 21/2 = 10.5cm.
180 - 168 = 12 degrees as the angle between BC.
Circumference of a sector is:
Angle/360 • pi • diameter
=12/360 • pi • 21 cm
= 2.19 cm = 2.20 cm
Which is option B
1.50 pounds.
(dont have pound symbol, only $)
Ratio of boys to the girls
= No of boys ÷ No of girls
=15÷18
=5:6