Maths
5. In Question 4, point C is called a mid-point of line segment AB. Prove that every line segment has one and only one mid-point.
15
Oct
5. In Question 4, point C is called a mid-point of line segment AB. Prove that every line segment has one and only one mid-point. 5. In Question 4 point C is called a mid-point of line segment AB. Prove that every line segment has one and only one mid-point. October 15, 2020 Category: Chapter [...]
4. If a point C lies between two points A and B such that AC = BC, then prove that AC = ½ AB. Explain by drawing the figure.
15
Oct
4. If a point C lies between two points A and B such that AC = BC, then prove that AC = ½ AB. Explain by drawing the figure. 4. If a point C lies between two points A and B such that AC = BC then prove that AC = ½ AB. Explain by [...]
3. Consider two ‘postulates’ given below: (i) Given any two distinct points A and B, there exists a third point C which is in between A and B. (ii) There exist at least three points that are not on the same line. Do these postulates contain any undefined terms? Are these postulates consistent? Do they follow from Euclid’s postulates? Explain.
15
Oct
3. Consider two ‘postulates’ given below: (i) Given any two distinct points A and B, there exists a third point C which is in between A and B. (ii) There exist at least three points that are not on the same line. Do these postulates contain any undefined terms? Are these postulates consistent? Do they [...]
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2. Give a definition for each of the following terms. Are there other terms that need to be defined first? What are they ,
3. Consider two ‘postulates’ given below: (i) Given any two distinct points A and B ,
and how might you define them? (i) parallel lines (ii) perpendicular lines (iii) line segment (iv) radius of a circle (v) square ,
2. Give a definition for each of the following terms. Are there other terms that need to be defined first? What are they, and how might you define them? (i) parallel lines (ii) perpendicular lines (iii) line segment (iv) radius of a circle (v) square
15
Oct
2. Give a definition for each of the following terms. Are there other terms that need to be defined first? What are they, and how might you define them? (i) parallel lines (ii) perpendicular lines (iii) line segment (iv) radius of a circle (v) square 2. Give a definition for each of the following terms. [...]
1. Which of the following statements are true and which are false? Give reasons for your answers. (i) Only one line can pass through a single point. (ii) There are an infinite number of lines which pass through two distinct points. (iii) A terminated line can be produced indefinitely on both the sides. (iv) If two circles are equal, then their radii are equal. (v) In Fig. 5.9, if AB = PQ and PQ = XY, then AB = XY.
15
Oct
1. Which of the following statements are true and which are false? Give reasons for your answers. (i) Only one line can pass through a single point. (ii) There are an infinite number of lines which pass through two distinct points. (iii) A terminated line can be produced indefinitely on both the sides. (iv) If [...]
Example 9 : Solve the equation 2x + 1 = x – 3, and represent the solution(s) on (i) the number line, (ii) the Cartesian plane.
15
Oct
Example 9 : Solve the equation 2x + 1 = x – 3, and represent the solution(s) on (i) the number line, (ii) the Cartesian plane. (ii) the Cartesian plane. and represent the solution(s) on (i) the number line Example 9 : Solve the equation 2x + 1 = x - 3 October 15, 2020 [...]
Example 8 : For each of the graphs given in Fig. 4.5 select the equation whose graph it is from the choices given below: (c) For fig 4.5(iii), (i) x+y=0 (ii) y = 2x (iii) y = 2x + 1 (iv) y = 2x – 4
15
Oct
Example 8 : For each of the graphs given in Fig. 4.5 select the equation whose graph it is from the choices given below: (c) For fig 4.5(iii), (i) x+y=0 (ii) y = 2x (iii) y = 2x + 1 (iv) y = 2x – 4 (i) x+y=0 (ii) y = 2x (iii) y = [...]
Example 8 : For each of the graphs given in Fig. 4.5 select the equation whose graph it is from the choices given below: (b) For fig 4.5(ii), (i) x+y=0 (ii) y = 2x (iii) y = 2x + 4 (iv) y = x – 4
15
Oct
Example 8 : For each of the graphs given in Fig. 4.5 select the equation whose graph it is from the choices given below: (b) For fig 4.5(ii), (i) x+y=0 (ii) y = 2x (iii) y = 2x + 4 (iv) y = x – 4 (i) x+y=0 (ii) y = 2x (iii) y = [...]
Example 8 : For each of the graphs given in Fig. 4.5 select the equation whose graph it is from the choices given below: (a) For Fig 4.5(i) (i) x+y=0 (ii) y=2x (iii) y=x (iv) y=2x+1
15
Oct
Example 8 : For each of the graphs given in Fig. 4.5 select the equation whose graph it is from the choices given below: (a) For Fig 4.5(i) (i) x+y=0 (ii) y=2x (iii) y=x (iv) y=2x+1 Example 8 : For each of the graphs given in Fig. 4.5 select the equation whose graph it is [...]
Example 7 : You know that the force applied on a body is directly proportional to the acceleration produced in the body. Write an equation to express this situation and plot the graph of the equation.
15
Oct
Example 7 : You know that the force applied on a body is directly proportional to the acceleration produced in the body. Write an equation to express this situation and plot the graph of the equation. Example 7 : You know that the force applied on a body is directly proportional to the acceleration produced [...]