C-08-Q178mediumsingle_mcq

Theorem 27: if two circles touch each other externally, the point of contact and the two centres are—

acoplanar but not collinear
bcollinear
cconcyclic
dcoincident

ব্যাখ্যা

When two circles touch externally, both centres and the point of contact lie on the same straight line (the common normal through the contact point). Therefore the two centres and the point of contact are collinear.

এই অধ্যায়ের আরও প্রশ্ন

C-08-Q179The proof of Theorem 27 uses the fact that at the point of contact—
C-08-Q180Since right angle, at the point of contact is a—
C-08-Q181Corollary 11: if two circles touch each other externally, the distance between their centres equals—
C-08-Q182Corollary 12: if two circles touch each other internally, the distance between their centres equals—
C-08-Q183The Work box accompanying Theorem 27 asks to prove that, for circles touching internally, the point of contact
C-08-Q184Two circles of radii cm and cm touch externally. The distance between their centres is—
C-08-Q185Two circles of radii cm and cm touch internally. The distance between their centres is—
C-08-Q186From an external point , two tangents are drawn to a circle with centre . Then is the perpendicular bisector o
C-08-Q187If a chord of the greater of two concentric circles touches the smaller circle, the chord is—
C-08-Q188is a diameter of a circle and a chord equal to the radius. If tangents at and meet at , then is—

Circle — সব প্রশ্ন দেখুন (231টি) →