Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
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

The rate of change of the area of a circle with respect to its radius r when r = 6 is (A) 10 p (B) 12 p (C) 8 p (D) 11 p

The rate of change of the area of a circle with respect to its radius r when r = 6 is
(A) 10 p (B) 12 p
(C) 8 p (D) 11 p

Grade:Upto college level

1 Answers

SHAIK AASIF AHAMED
askIITians Faculty 74 Points
7 years ago
A = p* r^2

dA/dr = 2p* r
when r=6

dA/dr = 2p*6 = 12p
Hence answer is B
Thanks & Regards
Jitender Singh
IIT Delhi
askIITians Faculty

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free