Chapter 10.1, Problem 6CE

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To determine

To find: whether both constructions are satisfactory.

Answer to Problem 6CE

The construction is satisfactory.

Explanation of Solution

Given information:

Calculation:

First $\angle 1$ is constructed and then $\angle 2$ is constructed.

Then one can say $m\angle SAY=m\angle 1+m\angle 2$ .

The construction is satisfactory.

Consider the second construction.

Here also first $\angle 1$ is constructed and then $\angle 2$ .

Then one can say $m\angle OUI=m\angle 1+m\angle 2$ .

The construction is satisfactory.