Triangle inequality and Chapter V review
Answers are for parents and teachers.
1
Two sides 6 and 11, third a whole number. The greatest value?
16
2
Can an isosceles triangle have legs 4 and base 9? Why?
No, 4 + 4 = 8 < 9.
3
In △ABC, ∠B = 90°, ∠A = 30°, BC = 7. Find AC.
14
4
State the triangle inequality in your own words.
Any side is smaller than the sum of the other two.
5
Write one theorem from Chapter V and an example of its use.
For example: angle sum 180°; with 50° and 60° the third is 70°.