Download App

Circles — Applied Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceApplied MathsCircles1 Mark
MCQ
The equation of the circle whose centre is $(-2,5)$ and radius 3 will be
  • A
    $x^2+y^2+4 x+10 y+20=0$
  • ✓
    $x^2+y^2+4 x-10 y+20=0$
  • C
    $x^2+y^2+4 x+10 y-20=0$
  • D
    $x^2+y^2-4 x-10 y+20=0$
✓

Answer

Correct option: B.
$x^2+y^2+4 x-10 y+20=0$
(B) $x^2+y^2+4 x-10 y+20=0$
Explanation :The equation of circle whose centre is $(-2,5)$ and radius is 3 , is given by
$\begin{array}{l}(x+2)^2+(y-5)^2=3^2 \\ \Rightarrow\left(x^2+4 x+4\right)+\left(y^2-10 y+25\right)=9 \\ \Rightarrow x^2+y^2+4 x-10 y+29-9=0 \\ \Rightarrow x^2+y^2+4 x-10 y+20=0\end{array}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Circles→Circles — all question types→Applied Maths STD 11 Science question papers→CBSE Board STD 11 Science question papers→CBSE Board question paper generator→

Similar questions

A man borrows ₹ 21000 at $10 \%$ per annum compound interest. How much he has to pay to the end of each year to clear his debt in two years?
→
The present value of an annuity is the worth of an annuity _______________ .
→
The difference between simple interest and compound interest on ₹ 15000 for one yea $8 \%$ per annum calculated half-yearly is:
→
Relationship between annual nominal rate of interest and annual effective rate of interest, if frequency of compounding is greater than one:
→
$\log _2 8$ is equal to
→
Which of the following trains is the fastest ?
→
A retailer purchases a fan for $₹ 1500$ from a wholesaler and sells it to a consumer at $10 \%$ profit. If the sales are intra-state and the rate of GST is $12 \%$, the selling price of the fan by the retailer (excluding tax) is:
→
The coefficient of ___________ is a measure of the shape of a distribution.
→
321 means Glass of Tea,
426 means Tea is Brown,
796 means Trunks are Brown.
Which of the following represents is in that language?
→
If $m$ is the geometric mean of $\left(\frac{y}{z}\right)^{\log (y z)},\left(\frac{z}{x}\right)^{\log (z x)}$ and $\left(\frac{x}{y}\right)^{\log (z))}$ then what is the value of $m$ ?
→