SSLC Maths Annual Exam Answer Key March 2026

🔢 SSLC Mathematics  —  March 2026

⏱️ Time: 2½ hours   |   Total score: 80 Answer key (all sections)

SECTION A

(1 score each · multiple choice)

• 1. In which sequence 37 is a term?
  (b) 7, 12, 17, …
• 2. CSA of cone (slant height ⅓) ?
  (d) 20 cm²
• 3. Point on y‑axis ?
  (b) (0, 2)
• 4. Median of 44,42,40,47,41,38,45 ?
  (a) 42
• 5. Algebraic form of 6,10,14,… ?
  (d) 4n+2
• 6. Diameter of circle (fig.) ?
  (b) 4 cm
• 7. Statements about tangent & radius
  (c) Both true, statement 2 is reason
• 8. Slope and point on line (3,1) & (5,2)
  (c) (ii) and (iii) are true

SECTION B

(short answers, 2–3 scores)

• 9. Probability dot in shaded sector 120°
  ⅓
• 10.(A) Three‑digit number
  (i) All digits same: 1/100

  (ii) Multiple of 5 & <200: 1/45
• 10.(B) Slips from two boxes
  (i) Product prime → ½

  (ii) Multiple of 7 → ¼
• 11. 7th term=100, 11th=140
  (i) 15th = 180   (ii) 3rd = 60
• 12.(A) Sum first 3 =30, first 7 =140
  (i) 2nd term = 10   (ii) 4th term = 20   (iii) first three: 5,10,15
• 12.(B) 1st+25th =70
  (i) 4th+22nd =70   (ii) 13th =35   (iii) sum first 25 =875
• 13. Median from grouped data
  (i) 23rd student   (ii) score of 20th =50   (iii) median =63.5

SECTION C

(3–4 scores, with subquestions)

• 14. Diameter ends (4,3) & (8,5)
  (i) centre = (6,4)   (ii) other end of diameter through (5,2) = (7,6)
• 15. Equilateral triangle ABC
  (i) C = (6,0)   (ii) height = 3√3   (iii) A = (3, 3√3)
• 16.(A) Circle with diameter (3,5) & (5,9)
  (i) centre = (4,7)   (ii) radius = √5   (iii) eqn: (x-4)²+(y-7)²=5
• 16.(B) Slope through (3,5) ...
  slope = 2
• 17.(A) Rectangle length 30m more, area 351
  (i) x²+30x-351=0   (ii) shorter side = 9 m
• 17.(B) Two numbers sum=4, product=2
  2+√2 , 2−√2
• 18. Remainder 1 on division by 4
  (i) 5,9,13,17…   (ii) yes d=4   (iii) algebraic form = 4n+7
• 19.(A) Sum first n terms = n²+6n
  (i) sum first 7 = 91   (ii) n=15 for sum 315
• 19.(B) 5,11,17,…
  (i) 6n−1   (ii) sum first 15 = 705   (iii) Sₙ = 3n²+2n
• 20. Polynomial x²−12x+32
  (i) (x−4)(x−8)   (ii) zero at x=4,8

SECTION E

(longer / construction / application)

• 21. Circle centre O, ∠AOB=50°,∠BOC=80°
  (i) ∠ADB =65°   (ii) ΔABC: 65°,40°,75°
• 22. Area of triangle in fig.
  25(√3+1) cm²
• 23.(A) Cylinder (r=8,h=15) → cones r=6, slant=10
  number of cones = 10
• 23.(B) Square pyramid painting cost
  ₹864
• 24.(A) Tower height, wires 70° & 48°, distance 40 m
  h = (40 tan70° tan48°) / (tan70°+tan48°)
• 24.(B) Triangle side 10cm, adjacent angles 60°,45°
  area = 25(√3+1) cm²
• 25. Triangle circumradius 3cm, angles 75°,50°
  (third angle 55°) construction description
• 26. Rectangle area 18cm² & equal square
  rectangle 6×3, square side 3√2 cm
• 27. Circle radius 2.5cm, incircle triangle 70°,50°
  (third angle 60°) draw incircle

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⚡ All answers are given per the official answer key.
For step-by-step explanations or figures, refer to the detailed solutions.