Question
A and B are centres of two circles of radii 32 cm and 8 cm, respectively. CD is a direct common tangent to the circles. If the length of AB = 30 cm, then the length of CD will be:
Calculations: Substitute the given values: 
∴ The length of CD is 18 cm.More Previous year papers Questions
- Find the HCF of 258, 301, and 387.
- If the perimeter of an equilateral triangle is 24 cm,then the length of each median is:
- At what time will ₹3,200 invested at 10% per annum compounded quarterly become ₹3,362?
- The price of petrol rises by 60%. By what percent age should one minimise the use of petrol so that the expenditure towards petrol is not affected?
- Raman drove from home to a neighboring town at the speed of 50 km/hr and on his returning journey, he drove at the speed of 45 km/hr. It also took him an h...
- Find the least number which when divided by 11,12,13,14 and 15 leaves the remainder 2 in each case.
- The average age of 30 students in a class is 20 years. If each student's age is increased by 5 years, then determine the number by which the average age is...
- A shopkeeper buys three products a, b, c and sells them at 20%, 30%, 40% profit, respectively. What is ratio of the selling price of these products, if the...
- Two trains of equal length are running on parallel lines in the same direction at 36 km/h and 54 km/h. The faster train passes the slower train in 48 secon...
- A sum of money doubles itself in 4 years at simple interest. In how much time will it become 7 times at the same rate of interest?
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
