Lesson 9: Practice Problems
Problem 1
Use a protractor to try to draw each triangle. Which of these three triangles is impossible to draw?
A triangle where one angle measures
and another angle measures A triangle where one angle measures
and another angle measures A triangle where one angle measures
and another angle measures
Problem 2
A triangle has an angle measuring
Sketch this triangle and label your sketch with the given measures.
How many unique triangles can you draw like this?
Problem 3 From Unit 5 Lesson 13
Find a value for
that makes less than . Find a value for
that makes greater than .
Problem 4 From Unit 5 Lesson 3
One of the particles in atoms is called an electron. It has a charge of -1. Another particle in atoms is a proton. It has charge of +1.
The overall charge of an atom is the sum of the charges of the electrons and the protons. Here is a list of common elements.
Find the overall charge for the rest of the atoms on the list.
charge from | charge from | overall | |
---|---|---|---|
carbon | |||
aluminum | |||
phosphide | |||
iodide | |||
tin |
Problem 5 From Unit 4 Lesson 3
A factory produces 3 bottles of sparkling water for every 7 bottles of plain water. If those are the only two products they produce, what percentage of their production is sparkling water? What percentage is plain?