O is the circumcentre of  If AO = 8 cm, then the length of BO

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11.

O is the circumcentre of increment ABC. If AO = 8 cm, then the length of BO is

  • 12 cm

  • 3 cm

  • 6 cm

  • 6 cm


D.

6 cm

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12.

In increment ABC comma space space AB space equals space straight a minus straight b comma space space AC space equals space square root of straight a squared plus straight b squared end root space space space and space space BC space equals space square root of 2 ab end root, then find angle B.

  • 60 degree
  • 30 degree
  • 90 degree
  • 90 degree
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13.

Possible measures of three angles of a triangle are

  • 33°, 42°, 115°

  • 40°, 70°, 80°

  • 30°, 60°, 100°

  • 30°, 60°, 100°

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14.

BD and CE are two medians of the triangle ABC. IF EO = 7 cm, then the length of CE is

  • 28 cm

  • 14 cm

  • 21 cm

  • 21 cm

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15.

Three median AD, BE and CF of increment ABC intersect at G; are of increment ABC is 36 sq cm. Then the area of increment CGE is

  • 12 sq cm

  • 6 sq cm

  • 9 sq cm

  • 9 sq cm

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16.

The ratio between the vertical angle and a base angle of an isosceles triangle is 4 : 3. The value of any one base angle is

  • 18 degree
  • 54 degree
  • 72 degree
  • 72 degree
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17.

In increment ABC comma space angle straight B space equals space 90 degree and BC space equals space square root of 3 space AB. Find the measurement of angle straight A.

  • 45 degree
  • 90 degree
  • 30 degree
  • 30 degree
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18.

Possible length of the three sides of a triangle are

  • 2 cm, 3 cm, 6 cm

  • 3 cm,  4cm, 5cm

  • 2.5 cm, 3.5 cm, 6cm

  • 2.5 cm, 3.5 cm, 6cm

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19.

AD is the median of increment ABC. If O is the centroid and AO = 10 cm then OD is

  • 5 cm

  • 20 cm

  • 10 cm

  • 10 cm

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20.

Incentre of  is I.  and >. <img class= is

  • 115°

  • 100°

  • 135°

  • 125°

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