Please enter the following details
Free Daily Targets & Mocks
Study Material & Formulas PDFs
1 on 1 Mentorship
Question 89
In the figure below, the rectangle at the corner measures 10 cm × 20 cm. The corner A of the rectangle is also a point on the circumference of the circle. What is the radius of the circle in cm?
Solution
As seen in the fig. we have a right angled triangle with sides r ,r-10 , r-20.
Using pythagoras we have $$r^2 = (r-10)^2 + (r-20)^2$$.
Solving the equation, we get r = 10 or 50.
But 10 is not possible , so r = 50.
Hence radius is 50.
Create a FREE account and get:
- All Quant CAT complete Formulas and shortcuts PDF
- 35+ CAT previous year papers with video solutions PDF
- 5000+ Topic-wise Previous year CAT Solved Questions for Free
CAT Quant Questions | CAT Quantitative Ability
CAT Venn Diagrams QuestionsCAT Remainders QuestionsCAT Number Series QuestionsCAT Logarithms, Surds and Indices QuestionsCAT Simple Interest Compound Interest Questions
CAT DILR Questions | LRDI Questions For CAT
CAT Data Interpretation Basics QuestionsCAT Truth Lie Concept QuestionsCAT Maxima-Minima QuestionsCAT 2D & 3D LR QuestionsCAT Charts Questions
