Class VII

Surface area of sphere is
  1. 2πr
  2. 4πr2
  3. 2πr2
  4. 6πr2
Graphs of y = ax2 passes through
  1. Origin
  2. x-axis
  3. y-axis
  4. None of above
If two lines intersect at a point, then the vertically opposite angles are always ________ .
  1. equal
  2. unequal
  3. supplementary
  4. complementary
A triangle has base (x + 2)cm and height (7 - x) cm, equation for area is
  1. 5x + 34
  2. 23x2 + 2x + 5
  3. 45x2 + 34x + 4
  4. 7 + 5x⁄x - x2⁄2
Non-right pyramids are called
  1. Oblique Pyramids
  2. Tetrahedron based pyramids
  3. Pentagon based pyramids
  4. Hexagon based pyramids
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