Class VII

The triangle whose lengths of sides are 7 cm, 24 cm, 25 cm is a __________.
  1. Acute-angled triangle
  2. None of these
  3. Obtuse-angled triangle
  4. Right-angled triangle
A 15 m long ladder reached a window 12 m high from the ground on placing it against a wall at a distance a. Find the distance of the foot of the ladder from the wall.
  1. None of these
  2. 12 m
  3. 9 m
  4. 10 m
A triangle in which all the three sides are of different length is called
  1. Equilateral triangle
  2. Isosceles triangle
  3. Scalene triangle
  4. None of these
The triangle whose lengths of sides are 8 cm, 15 cm, 17 cm is a __________.
  1. Acute-angled triangle
  2. None of these
  3. Right-angled triangle
  4. Obtuse-angled triangle
In a triangle, there are ____ sides and ____ angles
  1. 4, 4
  2. 3, 4
  3. 4, 3
  4. 3, 3
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