Question

13. An equilateral triangle of side 9 cm is inscribed in a circle
the circle is
(a) 3 cm
(b) 32 cm (c) 33 cm (d) 6
14. The angle in a semicircle measures
(a) 45°
(b) 60°
(c) 90°
(d) 3
15. Angles in the same segment of a circle area are
(a) equal
(b) complementary
(c) supplementary
(d) none of these
16. In the given figure, A ABC and ADBC are inscribed
in a circle such that ZBAC = 60° and ZDBC = 50°.
Then, ZBCD = ?
(a) 50°
(b) 60°
(c) 70°
(d) 80°
17. In the given figure, BOC is a diameter of a circle​

Answer 1

In geometry, an angle can be defined as the figure formed by two rays meeting at a common end point. An angle is represented by the symbol ∠. Here, the angle below is ∠AOB. Angles are measured in degrees, using a protractor.

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