Grade 7 Mathematics · Strand 3: Measurements · Pythagorean Relationship
Sides of a Right Angled Triangle
A short Grade 7 Mathematics lesson for the CBE curriculum, part of Measurements: Pythagorean Relationship. Learn it on any phone with notes and slides, then check yourself with a quick quiz and earn XP. This lesson is free.
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5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.
1. In triangle PQR, the right angle is at vertex Q. Which side is the hypotenuse?
- A. Side PQ
- B. Side QR
- C. Side PR
- D. Side QP
2. What is the name of the longest side of a right-angled triangle, which lies opposite the 90° angle?
Type your answer in the lesson.
3. A right-angled triangle has sides of length 7 cm, 25 cm and 24 cm. What is the length of the hypotenuse?
Type your answer (in cm) in the lesson.
4. Triangle KLM has a right angle at vertex L. A learner turns the triangle so that side KM is at the bottom, lying flat. Which statement is correct?
- A. KM is the base because it is at the bottom
- B. KM is still the hypotenuse because it is opposite the right angle
- C. KM is the height because it is flat
- D. KM becomes the shortest side
5. Which statement about the hypotenuse of a right-angled triangle is true?
- A. It can be shorter than the height
- B. It touches the right-angle vertex
- C. It is always longer than both the base and the height
- D. It is always the side at the bottom
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