Ex – 10.1 Que No. 3
Ex – 10.1 Que No. 3 Q.3) A tangent PQ at a point P of a circle of radius 5 cm meets a line through the centre O at a point Q so that OQ = 12 cm. Length PQ is : Solution:-
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Ex – 10.2 Que No. 1
Ex – 10.2 Que No. 1 Q.1) From a point Q, the length of the tangent to a circle is 24 cm and the distance of Q from the centre is 25 cm. The radius of the circle is
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Ex – 10.1 Que No. 1
Ex – 10.1 Que No. 1 Q.1) How many tangents can a circle have? Ans:- A tangent is a line that touches a circle at exactly one point, called the point of contact. A circle can have an infinite number of tangents.
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Ex – 10.1 Que No. 2
Ex – 10.1 Que No. 2 Q.1) Simplify and express the result in power notation with positive exponent. Solution:-
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Ex – 10.2 Que No. 1
Ex – 10.2 Que No. 1 Q.1) Express the following numbers in standard form Solution:-
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Concepts / Formula’s
Comparing Quantities – Concepts / Formula’s What is Ratio:- A ratio is a relationship in quantity or degree between two things. What is Percentage:- A percentage is a ratio, fraction, or portion of a whole which is represented as 100. What is Discount:- A reduction made from a regular price or marked price. What is Cost Price:-
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Ex – 7.1 Que No. 6
Ex – 7.1 Que No. 6 Q.6) If 60% people in a city like cricket, 30% like football and the remaining like other games, then what per cent of the people like other games? If the total number of people is 50 lakh, find the exact number who like each type of game. Solution:-
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Ex – 9.3 Que No. 8
Ex – 9.3 Que No. 8 Q.8) Water is pouring into a cubiodal reservoir at the rate of 60 litres per minute. If the volume of reservoir is 108 m3 , find the number of hours it will take to fill the reservoir. Solution:-
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