Loading…
Example 9.16 from Prealgebra, 9.3 Use Properties of Angles, Triangles, and the Pythagorean Theorem
Use Properties of Angles, Triangles, and the Pythagorean Theorem: example 9.16
An angle measures Find ⓐ its supplement, and ⓑ its complement.
Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.
Solution
ⓐ Step 1. Read the problem. Draw the figure and label it with the given information. Step 2. Identify what you are looking for. Step 3. Name. Choose a variable to represent it. Step 4. Translate.
Write the appropriate formula for the situation and substitute in the given information.Step 5. Solve the equation. Step 6. Check:
Step 7. Answer the question. ⓑ Step 1. Read the problem. Draw the figure and label it with the given information. Step 2. Identify what you are looking for. Step 3. Name. Choose a variable to represent it. Step 4. Translate.
Write the appropriate formula for the situation and substitute in the given information.Step 5. Solve the equation. Step 6. Check:
Step 7. Answer the question.
Your turn
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
An angle measures Find its: ⓐ supplement ⓑ complement.
How did it go?