132.The length of each side of a regular hexagon is 2 cm. The area of its circumscribed circle is
C.
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133. The length of the diagonal of a rectangle is 10 cm. The area of its circumscribed circle is
10 cm2
25 cm2
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134.The length of a chord of a circle is 16 cm and its distance from the centre is 6 cm. The measure of the radius of the circle is
6 cm
8 cm
10 cm
10 cm
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135.
In the following figure, there are two congruent circles whose centres are O and O' and chord AB = chord CD. If ∠CO'D = 60°, then the measure of ∠APB is equal to
45°
40°
30°
30°
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136.In the following figure, O is the centre of the circle. AOC is a diameter of the circle and ∠AOB = 80°. The degree measure of ∠OBC is equal to
30°
35°
40°
40°
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137.The length of the chord of a circle, of radius 13 cm, at a distance of 5 cm from the centre is
12 cm
18 cm
20 cm
20 cm
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138.The length of the perpendicular from the centre of a circle of radius 5 cm on a chord of it of length 8 cm is
6 cm
5 cm
4 cm
4 cm
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139.In the following figure, two circles C (O1, r) and C(O2, r) are congruent and arc = arc If the measure of ∠RO2S = 62° and the measure of ∠PAQ = x°, then the value of x is
28°
31°
38°
38°
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140.In the following figure, ABCD is a cyclic quadrilateral whose side AD is a diameter of the circle and the point O is the centre of the circle. If ∠OCD = 50°, then the measure of ∠ABC is