TrianglesPractice Questions & MCQs
Practice Triangles questions for Class 9 Maths - important MCQs and practice questions with answers and step-by-step solutions. Solve the sample Triangles questions below, then get the full set free on the RankByte app.
Topics covered
Practice Triangles by topic
Focused MCQ quizzes for each topic.
TrianglesQuiz - Solve & Score
A few sample questions with instant answers and solutions - the full set is in the app.
Q1. A carpenter nails together a triangular roof truss whose two lower joints open to 70 degrees and 55 degrees; what does the remaining joint measure?
- A.110 degrees
- B.235 degrees
- C.125 degrees
- D.55 degrees
Answer: D. 55 degrees
The interior angles of a triangle add to 180 degrees, so the third = 180 - (70 + 55) = 180 - 125 = 55 degrees.
Q2. A sailmaker stitches a triangular jib and finds its two lower corners come to 48 degrees and 67 degrees; how wide is the top corner of the sail?
- A.115 degrees
- B.132 degrees
- C.113 degrees
- D.65 degrees
Answer: D. 65 degrees
The interior angles of a triangle add to 180 degrees, so the third = 180 - (48 + 67) = 180 - 115 = 65 degrees.
Q3. A gardener pegs out a triangular herb bed and reads two of its corners as 34 degrees and 81 degrees on a protractor; what is the third corner?
- A.146 degrees
- B.65 degrees
- C.99 degrees
- D.115 degrees
Answer: B. 65 degrees
The interior angles of a triangle add to 180 degrees, so the third = 180 - (34 + 81) = 180 - 115 = 65 degrees.
Practice the full Triangles set on RankByte
Step-by-step solutions, real mock tests, live National & School ranks and daily streaks - free to start.
Get early accessTriangles - Frequently asked questions
Where can I find Triangles practice questions for Class 9 Maths?
RankByte has chapter-wise and topic-wise Triangles practice questions and MCQs for Class 9 Maths, each with the correct answer and a step-by-step solution - free to start.
Are these Triangles questions important for the exam?
Yes. These Triangles important questions follow the Maths exam pattern (CBSE Boards, plus JEE and NEET foundation), so they help with both school and competitive prep.
Do the Triangles questions come with answers and solutions?
Every Triangles question on RankByte comes with the correct answer and a full step-by-step solution, so you learn from each one instead of just guessing.
More Class 9 Maths chapters
Areas of Parallelograms and Triangles
Interactive quiz · step solutions
Practice →Circles
Interactive quiz · step solutions
Practice →Coordinate Geometry
Interactive quiz · step solutions
Practice →Heron's Formula
Interactive quiz · step solutions
Practice →Introduction to Euclid's Geometry
Interactive quiz · step solutions
Practice →Linear Equations in Two Variables
Interactive quiz · step solutions
Practice →