Geometry Practice Question and Answer

Q:

If the circumradius of an equilateral triangle be 10 cm, then the measure of its in-radius is

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  • 1
    5 cm.
    Correct
    Wrong
  • 2
    10 cm.
    Correct
    Wrong
  • 3
    20 cm.
    Correct
    Wrong
  • 4
    15 cm.
    Correct
    Wrong
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Answer : 1. "5 cm. "

Q:

The side QR of an equilateral triangle PQR is produced to the point S in such a way that QR = RS and P is joined to S. Then the measure of ∠PSR is

493 0

  • 1
    30°
    Correct
    Wrong
  • 2
    15°
    Correct
    Wrong
  • 3
    60°
    Correct
    Wrong
  • 4
    45°
    Correct
    Wrong
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Answer : 1. "30° "

Q:

In a triangle, if orthocentre, circumcentre, incentre and centroid coincide, then the triangle must be

521 0

  • 1
    obtuse angled
    Correct
    Wrong
  • 2
    isosceles
    Correct
    Wrong
  • 3
    equilateral
    Correct
    Wrong
  • 4
    right-angled
    Correct
    Wrong
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Answer : 3. "equilateral "

Q:

If the incentre of an equilateral triangle lies inside the triangle and its radius is 3 cm, then the side of the equilateral triangle is

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  • 1
    $$ 9\sqrt { 3}$$cm
    Correct
    Wrong
  • 2
    $$ 6\sqrt { 3}$$cm
    Correct
    Wrong
  • 3
    3 cm
    Correct
    Wrong
  • 4
    6 cm
    Correct
    Wrong
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Answer : 2. "$$ 6\sqrt { 3}$$cm "

Q:

If ABC is an equilateral triangle and P, Q, R respectively denote the middle points of AB, BC, CA then.

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  • 1
    PQR must be an equilateral triangle
    Correct
    Wrong
  • 2
    PQ + QR + PR = AB
    Correct
    Wrong
  • 3
    PQ + QR + PR = 2 AB
    Correct
    Wrong
  • 4
    PQR must be a right angled triangle
    Correct
    Wrong
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Answer : 1. "PQR must be an equilateral triangle "

Q:

Let ABC be an equilateral triangle and AX, BY, CZ be the altitudes. Then the right statement out of the four given responses is

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  • 1
    AX = BY = CZ
    Correct
    Wrong
  • 2
    AX ≠ BY = CZ
    Correct
    Wrong
  • 3
    AX = BY ≠ CZ
    Correct
    Wrong
  • 4
    AX ≠ BY ≠ CZ
    Correct
    Wrong
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Answer : 1. "AX = BY = CZ "

Q:

If in a triangle, the circumcenter, incentre, centroid and orthocenter coincide, then the triangle is

435 0

  • 1
    Acute angled
    Correct
    Wrong
  • 2
    Isosceles
    Correct
    Wrong
  • 3
    Right angled
    Correct
    Wrong
  • 4
    Equilateral
    Correct
    Wrong
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Answer : 4. "Equilateral"

Q:

If the orthocenter and the centroid of a triangle are the same, then the triangle is:

409 0

  • 1
    Scalene
    Correct
    Wrong
  • 2
    Right angled
    Correct
    Wrong
  • 3
    Equilateral
    Correct
    Wrong
  • 4
    Obtuse angled
    Correct
    Wrong
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Answer : 3. "Equilateral "

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