Tamil Nadu Board 10th Standard Maths - Chapter 5 Unit Exercise 5.5: Book Back Answers and Solutions
This post covers the book back answers and solutions for Chapter 5 Unit Exercise 5.5 – Maths from the Tamil Nadu State Board 10th Standard textbook. These detailed answers have been carefully prepared by our expert teachers at KalviTips.com.
We have explained each answer in a simple, easy-to-understand format, highlighting important points step by step under the relevant subtopics. Students are advised to read and memorize these subtopics thoroughly. Once you understand the main concepts, you’ll be able to connect other related points with real-life examples and confidently present them in your tests and exams.
By going through this material, you’ll gain a strong understanding of Chapter 5 Unit Exercise 5.5 along with the corresponding book back questions and answers (PDF format).
Question Types Covered:
- 1 Mark Questions: Choose the correct answer, Fill in the blanks, Identify the correct statement, Match the following
- 2 Mark Questions: Answer briefly
- 3, 4, and 5 Mark Questions: Answer in detail
All answers are presented in a clear and student-friendly manner, focusing on key points to help you score full marks.
All the best, Class 10 students! Prepare well and aim for top scores. Thank you!
Chapter 5 Coordinate Geometry Unit Ex 5.5
1. The area of triangle formed by the points (−5,0) , (0,−5) and (5,0) is(A) 0 sq.units
(B) 25 sq.units
(C) 5 sq.units
(D) none of these
2. A man walks near a wall, such that the distance between him and the wall is 10 units. Consider the wall to be the Y axis. The path travelled by the man is
(A) x = 10
(B) y = 10
(C) x = 0
(D) y = 0
Answer Key:
3. The straight line given by the equation x = 11 is
(A) parallel to X axis
(B) parallel to Y axis
(C) passing through the origin
(D) passing through the point (0,11)
Answer Key:
4. If (5,7), (3,p) and (6,6) are collinear, then the value of p is
(A) 3
(B) 6
(C) 9
(D) 12
Answer Key:
5. The point of intersection of 3x −y = 4 and x +y = 8 is
(A) (5,3)
(B) (2,4)
(C) (3,5)
(D) (4,4)
Answer Key:
6. The slope of the line joining (12, 3) , (4,a) is 1/8. The value of ‘a’ is
(A) 1
(B) 4
(C) -5
(D) 2
Answer Key:
7. The slope of the line which is perpendicular to a line joining the points (0,0) and (–8,8) is
(A) –1
(B) 1
(C) 1/3
(D) -8
Answer Key:
8. If slope of the line PQ is 1/√3 then slope of the perpendicular bisector of PQ is
(A) √3
(B) - √3
(C) 1/√3
(D) 0
Answer Key:
9. If A is a point on the Y axis whose ordinate is 8 and B is a point on the X axis whose abscissae is 5 then the equation of the line AB is
(A) 8x + 5y = 40
(B) 8x −5y = 40
(C) x = 8
(D) y = 5
Answer Key:
10. The equation of a line passing through the origin and perpendicular to the line 7x −3y + 4 = 0 is
(A) 7x −3y + 4 = 0
(B) 3x −7y + 4 = 0
(C) 3x + 7y = 0
(D) 7x −3y = 0
Answer Key:
11. Consider four straight lines
(i) ; 3y = 4x + 5 (ii) ; 4y = 3x −1 (iii) ; 4y + 3x = 7 (iv) ; 4x + 3y = 2
Which of the following statement is true ?
(A) and are perpendicular
(B) and are parallel
(C) and are perpendicular
(D) and are parallel
Answer Key:
12. A straight line has equation 8y = 4x +21. Which of the following is true
(A) The slope is 0.5 and the y intercept is 2.6
(B) The slope is 5 and the y intercept is 1.6
(C) The slope is 0.5 and the y intercept is 1.6
(D) The slope is 5 and the y intercept is 2.6
Answer Key:
13. When proving that a quadrilateral is a trapezium, it is necessary to
show
(A) Two sides are parallel.
(B) Two parallel and two non-parallel sides.
(C) Opposite sides are parallel.
(D) All sides are of equal length.
Answer Key:
14. When proving that a quadrilateral is a parallelogram by using slopes you must find
(A) The slopes of two sides
(B) The slopes of two pair of opposite sides
(C) The lengths of all sides
(D) Both the lengths and slopes of two sides
Answer Key:
15. (2, 1) is the point of intersection of two lines.
(A) x −y −3 = 0; 3x −y −7 = 0
(B) x +y = 3; 3x +y = 7
(C) 3x +y = 3; x +y = 7
(D) x + 3y −3 = 0; x −y −7 = 0
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