C-08-Q092mediumsingle_mcq

In a semicircle, the angle at the centre $\angle BOC$ is a—

aright angle
bstraight angle
cacute angle
dzero angle

ব্যাখ্যা

In a semicircle $BC$ is a diameter, so the radii $OB$ and $OC$ point in exactly opposite directions, making $\angle BOC = 180^\circ$ , a straight angle. The central angle on a diameter is therefore always straight.

এই অধ্যায়ের আরও প্রশ্ন

C-08-Q093In a semicircle, the angle on the arc at any point on the circle is a—
C-08-Q094Theorem 20: the angle subtended by an arc at the centre is— the angle subtended by the same arc at any point o
C-08-Q095If an arc subtends an angle of at the centre, the angle subtended at the circumference is—
C-08-Q096If an inscribed angle is , the corresponding central angle is—
C-08-Q097In the proof of Theorem 20, the auxiliary line drawn through passes through—
C-08-Q098The proof uses the fact that an exterior angle of a triangle equals—
C-08-Q099In , implies because—
C-08-Q100Since , similarly equals—
C-08-Q101Adding the two relations gives
C-08-Q102The Work box accompanying Theorem 20 asks to prove the theorem when—

Circle — সব প্রশ্ন দেখুন (231টি) →

In a semicircle, the angle at the centre $\angle BOC$ is a—

aright angle

bstraight angle

cacute angle

dzero angle

In a semicircle, the angle at the centre ∠BOC\angle BOC∠BOC is a—

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

In a semicircle, the angle at the centre ∠BOC\angle BOC∠BOC is a—

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

In a semicircle, the angle at the centre $\angle BOC$ is a—

In a semicircle, the angle at the centre $\angle BOC$ is a—