Triangles - Properties and Congruence - Problems on Triangles - Applications

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Q. If the lengths of the sides of triangle XYZ are 8 cm, 15 cm, and 17 cm, is it a right triangle?
  • A. Yes
  • B. No
  • C. It cannot be determined
  • D. Only if angle X is 90 degrees
Q. If triangle PQR is an isosceles triangle with PQ = PR, and the vertex angle Q is 40 degrees, what are the base angles?
  • A. 20 degrees
  • B. 40 degrees
  • C. 70 degrees
  • D. 80 degrees
Q. In triangle ABC, if angle A = 50 degrees and angle B = 70 degrees, what is the measure of angle C?
  • A. 60 degrees
  • B. 70 degrees
  • C. 80 degrees
  • D. 90 degrees
Q. In triangle PQR, if PQ = 6 cm, QR = 8 cm, and PR = 10 cm, what type of triangle is it?
  • A. Acute
  • B. Obtuse
  • C. Right
  • D. Equilateral
Q. In triangle XYZ, if XY = 8, YZ = 6, and XZ = 10, which side is the longest?
  • A. XY
  • B. YZ
  • C. XZ
  • D. All sides are equal
Q. What is the perimeter of an equilateral triangle with a side length of 12 cm?
  • A. 36 cm
  • B. 24 cm
  • C. 30 cm
  • D. 12 cm
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