“Teaching is a very noble profession that shapes the character, caliber, and future of an individual. If the people remember me as a good teacher, that will be the biggest honour for me.”
Dr. A.P.J.Abdul Kalam
“Don’t compare yourself with anyone in this world…if you do so, you are insulting yourself.”
Bill Gates
“When something is important enough, you do it even if the odds are not in your favor.”
Elon Musk
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Exercise 6.2
- In Fig. 6.20, DE ‖ OQ and DF ‖ OR. Show that EF ‖ QR.
- In Fig. 6.21, A, B and C are points on OP, OQ, and OR respectively such that AB ‖ PQ and AC ‖ PR. Show that BC ‖ QR.
- Using theorem 6.2, prove that a line joining the mid-point of any two sides of a triangle is parallel to the third side.
- Using theorem 6.1, prove that a line drawn through the mid-point of one side of a triangle parallel to the other side bisects the third side.
- ABCD is a trapezium in which AB ‖ DC and its diagonals intersect each other at the point O.Show that AO/BO = CO/DO
Exercise 6.3
Exercise 6.5
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Class IX
MATHS
Mensuration
Compound Interest
Miscellaneous
- Two men are walking towards each other alongside a railway track. A freight train overtakes one of them in 20 sec and in exactly 10 minutes later meets the other man coming from the opposite direction. The train passes this man in 18 seconds. Assume the speed is constant throughout. How long after the train has passed the second man will the two men meet?
- Questions
- It is impossible for the census bureau to obtain all the census data about the population of the United States.
- Explain your reasoning. The salary of each teacher in a school.
- The number of pets for 20 households in a town with 300 households.
- Following the election, 18% of the governors of the 50 United States were female.
- For a certain movie, 64.3% of the 112 members of the audience were females.
