Triangles

Class 10 · Mathematics

73 questions30 easy31 medium12 hard

Sample Questions

Q1.The sides of a triangle are 5 cm, 12 cm, 13 cm. Find the area of the triangle.

  • A20 cm²
  • B30 cm²
  • C40 cm²
  • D60 cm²

Q2.△ABC ~ △DEF. If AB = 4, BC = 5, CA = 6, and DE = 12, find the perimeter of △DEF.

  • A36
  • B40
  • C45
  • D48

Q3.In △PQR, if the medians PM, QN and RS intersect at G (centroid), then PG:GM =

  • A1:2
  • B2:1
  • C1:1
  • D3:1

Q4.△ABC ~ △AMP. If BC = 12 and MP = 4, then the ratio of areas is:

  • A3:1
  • B9:1
  • C6:1
  • D12:1

Q5.In a right-angled triangle, if the three sides form a ratio 3:4:5, the right angle is opposite the side of measure:

  • A3 units
  • B4 units
  • C5 units
  • D3+4 = 7 units

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

AAA similarityAreas of similar trianglesBasic Proportionality Theorem (BPT)Converse of Pythagoras theoremCriteria for similarityPythagoras theoremSAS similaritySSS similaritySimilar triangles

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