Solving right triangles

Find missing sides and angles with the three ratios and inverse trig functions.

Standards:G-SRT.C.8

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 3

A ladder leans against a wall, forming a 38° angle with the ground. If the ladder is 12 feet long, how far up the wall does it reach?

Question 2 of 3

A ladder leans against a wall, reaching 12 feet high. The base of the ladder is 5 feet from the wall. Find the length of the ladder.

Question 3 of 3

A surveyor stands 45 meters from the base of a cliff. From her position, the angle of elevation to the top of the cliff is 52°. How tall is the cliff?

How this fits in

Solving right triangles is one skill in the Trigonometry unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

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