IM Geo.4.1 Practice: Angles and Steepness
The Americans with Disabilities Act states that ramps must have an angle less than or equal to 4.8 degrees. Remember, a 4.8 degree angle in a right triangle has a ratio for the legs. Select all ramps that meet the Americans with Disabilities Act requirements.
Find the missing side in each triangle using any method. Check your answers using a different method.
In this diagram, lines and are parallel,
and line is perpendicular to each of them.
What is a reasonable estimate for the length of side ?
,
,
,
segment has length 1
Lin says she has memorized the lengths of a few right triangles, for example, 3, 4, and 5. She is trying to compile a list of several right triangles but needs your help. Find the lengths of at least 2 triangles that are right.
In triangle , the measure of angle is and the measure of angle is . In triangle , the measure of angle is and the measure of angle is . Are triangles and similar? Explain or show your reasoning.