10th Standard CBSE - Maths - Triangles

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Question - 1

Given two triangles ABC and DEF ,AG and DH are perpendiculars on BC and EF respectively ∠B = ∠E , AB=5,DE=8 .What is \(\frac { AG }{ DH } =?\)

  • A 5/8
  • B 2/5
  • C 3/5
  • D 3/8

Question - 2

Which of the following cannot be the sides a right triangle?

  • A 400mm, 300 mm, 500mm
  • B 9 cm, 15 cm, 12 cm
  • C 2 cm, 1 cm, √5 cm
  • D 9 cm, 5 cm, 7cm

Question - 3

In a triangle ABC, AC= √180 ,AB=6 ,BC=12 .What is ∠B = ?

  • A 90°
  • B 30°
  • C 45°
  • D 60°

Question - 4

 

From the given figure, find the unknown x.

  • A 12
  • B 225
  • C 10
  • D 144

Question - 5

Three squares are based on the sides of a right angled triangle. The area of the two smaller ones are 144 sq. cm and 256 sq. cm. What is the area of the third one?

  • A 625 sq. cm
  • B 361 sq. cm
  • C 400 sq. cm
  • D 900sq. cm

Question - 6

What is the diagonal length of a TV screen whose dimensions are 80 x 60 cm?

  • A 10
  • B 100
  • C 20
  • D 100

Question - 7

Which of the following is a Pythagorean triplet?

  • A (36,18,43)
  • B (15,20,25)
  • C (3,12,13)
  • D (24,25,26)

Question - 8

QM ⊥ RP and PR2 – PQ2 = OR2 . If∠QPM = 30° , Then ∠MQR is

  • A 45o
  • B 60°
  • C 90°
  • D 30°

Question - 9


In the above figure, AB=c, BC =a, AC=b ,AD=y, DB=p. Check which of the following options is correct?

  • A cy=ap
  • B ac=by
  • C ay=cp
  • D cy=ab

Question - 10

In right triangled ABC right angled at B ,a line DE is drawn through the mid point D of AB and parallel to BC.If AB=9 cm, BC=12 cm. AE=?

  • A 13 cm
  • B 10 cm
  • C 8.5 cm
  • D 7.5 cm
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