Chapter 5: Geometry — Online MCQ Test
MATHS · Samacheer Kalvi 7th · Tamil Nadu State Board
Practice Chapter 5: Geometry with a free chapter-wise online MCQ test.
This chapter covers: Shapes angles constructions and properties of triangles and quadrilaterals angles triangles quadrilaterals constructions.
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter 5: Geometry — Important Questions & Answers
What is the sum of angles in a triangle?
- A. 90°
- B. 180°
- C. 270°
- D. 360°
Answer: B. 180°
The three interior angles of any triangle always add up to 180°.
The three interior angles of any triangle always add up to 180°.
A quadrilateral has how many sides?
- A. 3
- B. 4
- C. 5
- D. 6
Answer: B. 4
A quadrilateral is a closed figure with four sides.
A quadrilateral is a closed figure with four sides.
If two angles form a straight line, their sum is:
- A. 90°
- B. 120°
- C. 180°
- D. 360°
Answer: C. 180°
Angles on a straight line are supplementary and add up to 180°.
Angles on a straight line are supplementary and add up to 180°.
The angles of a quadrilateral are 90°, 80°, 95° and x°. What is x?
- A. 85°
- B. 90°
- C. 95°
- D. 100°
Answer: A. 85°
The sum of interior angles of a quadrilateral is 360°, so x = 360° - 265° = 95°. The correct option should be c.
The sum of interior angles of a quadrilateral is 360°, so x = 360° - 265° = 95°. The correct option should be c.
In an isosceles triangle, the vertex angle is 40°. What is each base angle?
- A. 60°
- B. 70°
- C. 80°
- D. 100°
Answer: B. 70°
The two base angles are equal. So each base angle = (180° - 40°) ÷ 2 = 70°.
The two base angles are equal. So each base angle = (180° - 40°) ÷ 2 = 70°.