Triangles

Bihar Board Class 10 · Mathematics · 42 past questions

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1. Q1 2026

   All the triangles of which of the following types are similar?

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2. Q2 2026

   Two polygons having the same number of sides are similar. Then the relation among their corresponding sides is

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3. Q3 2026

   Ratio of the areas of two similar triangles is 4 : 9; then the ratio of their corresponding sides is

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4. Q4 2026

   If $\triangle ABC \sim \triangle DEF$ and $\frac{AB}{DE}=\frac{3}{5}$ then $\frac{FD}{CA}=$

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5. Q5 2026

   $\triangle ABC \sim \triangle PQR$ and their perimeters are 32 cm and 24 cm respectively. If $AB = 10$ cm…

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6. Q6 2026

   Length of the altitude of an equilateral triangle having side $2a$ cm is

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7. Q7 2026

   Which of the following options is not a Pythagorean triplet ?

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8. Q8 2026

   Area of the equilateral triangle having height $6\sqrt{3}$ cm is

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9. Q9 2026

   If the bisector of an angle of a triangle bisects the opposite side then the triangle is

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10. Q10 2026

    If the lengths of diagonals of a rhombus are 10 cm and 24 cm respectively then each side of the rhombus is

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