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
ajinkya bhole Grade: 10
        

C is a point outside circle with centre A. and radius "r".


CB and CD  are tangents segments whose length is "t".


find area of triangle BCD in terms of "r" and "t"

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear ajinka




7258-2463_7662_untitled.JPG


CA = √r2+t2


sinθ =r/√r2+t2


cosθ = t/√r2+t2


AP =rsinθ  = r2/√r2+t2


BP =rcosθ = tr/√r2+t2


ΔBCD = =2ΔBCP = 2[ΔABC -ΔABP]


                        =2[rt/2   - 1/2 AB * BP]


                        =rt - {r2/√r2+t2}{ tr/√r2+t2}


                        =rt - r3t/(r2+t2)


                        =rt3/(r2+t2)


 Please feel free to post as many doubts on our discussion forum as you can.
If you find any question Difficult to understand - post it here and we will get you
the answer and detailed  solution very  quickly.

 We are all IITians and here to help you in your IIT JEE preparation.

All the best.
 
Regards,
Askiitians Experts
Badiuddin


7 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

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