Knowee
Questions
Features
Study Tools

TangentsPA andPB are drawn from the point 2,3P to the circle2 2 6 4 3 0    x y x y ,touching the circle atA andB . If the center of the circle isC , find the area of the quadrilateralCAPB.

Question

TangentsPA andPB are drawn from the point 2,3P to the circle2 2 6 4 3 0    x y x y ,touching the circle atA andB . If the center of the circle isC , find the area of the quadrilateralCAPB.

🧐 Not the exact question you are looking for?Go ask a question

Solution

The equation of the circle is in the form (x-h)² + (y-k)² = r², where (h,k) is the center of the circle and r is the radius.

From the given equation, we can see that h = -3, k = -2, and r² = (6² + 4² - 0) = 52. So, the center of the circle C is at (-3,-2) and the radius is √52.

The distance from P(2,3) to C(-3,-2) can be calculated using the distance formula √[(x₂-x₁)² + (y₂-y₁)²] = √[(2-(-3))² + (3-(-2))²] = √[25 + 25] = √50.

Since the tangents from an external point to a circle are equal in length, PA = PB. Let's denote this common length as 'a'.

Triangle PCA is a right triangle (as the radius is perpendicular to the tangent at the point of contact), so by Pythagoras' theorem, PC² = PA² + AC². Substituting the known values, we get 50 = a² + 52. Solving for 'a', we find that a = √(-2), which is not possible.

It seems there might be a mistake in the problem as it leads to an imaginary number. Please check the problem and try again.

This problem has been solved

Similar Questions

Pair of tangents are drawn from  P(−1, 2)  to  y2  =  4x  touching it at  A, B , then area of triangle  PAB  (in sq. units) is equal to:

Two mutually perpendicular chords AB and CD meet at a point P inside the circle such that AP = 6 cms, PB = 4 cms, and DP = 3 cms. What is the area of the circle?

n this figure, MQ and MP are two tangents to the circle with centre O. Question promptWhat is the value of x?Question response areaSelect one option15304560

Centres of two circles having radius 2 and 1 units are 5 units apart. The area of the quadrilateral formed by joining the points of contact of external tangents drawn to circles is equal to (in sq. units)

Try AgainYour answer is incorrect.Find the area of the figure. (Sides meet at right angles.)5yd2yd3yd8yd4yd

1/3

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.