Chapter 4 computation Review

Front

What is the value of the missing angle in a triangle if the other two angles are 75º and 60º?

Back

The missing angle is 45º.

Front

What is the smallest angle in a triangle with angles 30º, 60º, and 90º?

Back

The smallest angle is 30º.

Front

Classify a triangle with angles measuring 30º, 60º, and 90º.

Back

The triangle is a Right triangle.

Front

What is the measure of angle ACD if angle ABC is 60º and angle BCD is 90º?

Back

Angle ACD measures 30º.

Front

If two sides of a triangle are 8 cm and 6 cm, what is the range of possible lengths for the third side?

Back

The range is 2 cm < x < 14 cm.

Front

What is the sum of the interior angles of a triangle?

Back

The sum is always 180º.

Front

Define an acute triangle.

Back

An acute triangle is a triangle where all three angles are less than 90º.

Front

Define a scalene triangle.

Back

A scalene triangle is a triangle with all sides of different lengths.

Front

What is the definition of an obtuse triangle?

Back

An obtuse triangle is a triangle that has one angle greater than 90º.

Front

What is the definition of an isosceles triangle?

Back

An isosceles triangle is a triangle with at least two sides of equal length.