MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 10
        In a triangle ABC median AM=17,altitude AD=15 and the circum radius R=10 
find BC square
6 years ago

Answers : (1)

Sumit Majumdar
IIT Delhi
askIITians Faculty
137 Points
							
Dear student,

enter image description here

E is the perpendicular on AD from O. We can show by side-side-side criteria that triangles OMBand OMC are congruent, hence angle OMC =90. So OE=MD={17^2-15^2}^1/2=8, andOM=ED=AD-AE=15-\sqrt{10^2-8^2}=9. Thus, BC^2=4BM^2=4(10^2-9^2)=76.

Regards

Sumit

5 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 728 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details