View source for Circles, frustums and cylinders revision/Worksheet

<center>'''Samba Worksheet – Resource M007'''</center>
[[Image:Drum.png]]

It is important that you show all working out on a paper provided.

Make sure you label all questions clearly.

Please remember to write your name on your work.

'''Caixas'''

The Caixa is one of the loudest drums in a samba band. It has 4 strings going through its ‘center’. 
# Can you work out the area of the minor segment created by the right most string using just a measuring tape? Justify your answer.
# What is the minimum information do you need to collect? (What do you need to measure?)
# Which known formulae do you need to use?
# Workout the area of the minor segment. Give your answer to 2 decimal places.

'''Timbas'''

The timbas are drums in the shape of a truncated cone. They produce a very dry sound. Drummers use their hands to play the timbas.
# Work out the volume of the Timba.
# What is the minimum information do you need to collect? (What do you need to measure?)
# Which known formulae do you need to use?
# Show your working.
# What are the shapes of the 2 areas that make the net of the timba?
# Draw the net of the timba
# Work out the surface area of the timba. (to 2dp)
# Work out the area of the segment between 2 adjacent hinges of the timba (to 3sf) 

'''Surdo'''

The surdo in a samba band is the equivalent to a base guitar in a rock band.

There are 3 types of surdo (high,mid and low). Together they form what is called the ‘surdo line’
# What is the formula for the surface area of the high surdo?
# What is the formula for the volume of the surdo?
# Work out the volume and the surface area of the high surdo. Give your answer to 3 significant figures.
# Workout the area of the segment between 2 adjacent hinges of the Surdo. Give your answer to 2 significant figures.
# The low surdo is similar yet larger drum. Its radius is 1.5 times the radius of the high surdo. 
# What is the hight of the low surdo?
# Work out the volume of the low surdo (to 4sf)