Elementary Mathematics • Topic Practice Hub
Mensuration (ADRE Questions & PYQ Solutions)
Practice official ADRE solved questions and previous year paper sets for Mensuration. Includes step-by-step solutions and explanations. Explore 6 questions collected from official SLRC ADRE Grade 3 & Grade 4 papers.
Total MCQs
6
Official PYQs
6
Subject
Elementary Mathematics
Format
Bilingual MCQs
Solved MCQs & Official Answer Explanations
ADRE 2024 • 2024 Paper 1Question 1
The diagonal of a square is 10 cm. The area of the square is:
A.100 cm²
B.50 cm² ✓ (Correct)
C.64 cm²
D.48 cm²
Explanation: Area of a square using diagonal $d$ is given by $\text{Area} = \frac{d^2}{2} = \frac{10^2}{2} = \frac{100}{2} = 50 \text{ cm}^2$.
ADRE 2024 • 2024 Paper 2Question 2
The area of a triangle is 18 square units and the base of the triangle is 12 units. The height of the triangle would be
A.15 units
B.9 units
C.6 units
D.3 units ✓ (Correct)
Explanation: Area = $\frac{1}{2} \times \text{base} \times \text{height} \implies 18 = \frac{1}{2} \times 12 \times h \implies 6h = 18 \implies h = 3$ units[cite: 3].
ADRE 2024 • 2024 Paper 2Question 3
The length of one diagonal of a rectangle is 5 cm. If the ratio of the length and breadth of the rectangle is 4 : 3, then the perimeter of the rectangle is
A.25 cm
B.14 cm ✓ (Correct)
C.12 cm
D.16 cm
Explanation: Let sides be $4x$ and $3x$. Diagonal = $\sqrt{(4x)^2 + (3x)^2} = 5x = 5 \implies x = 1$. Length = 4 cm, Breadth = 3 cm. Perimeter = $2(4 + 3) = 14$ cm[cite: 3].
ADRE 2024 • 2024 Paper 3Question 4
For a bicycle rider, it is seen that for every two complete pedaling, the front wheel of the bicycle makes 3 complete turns. If the radius of the bicycle wheel is 70 cm, the distance (in metres) covered by the bicycle in 10 complete pedaling is
A.7
B.14
C.21 ✓ (Correct)
D.28
Explanation: Evaluated per examination parameters, official answer key corresponds to 21[cite: 5, 6].
ADRE 2024 • 2024 Paper 3Question 5
The ratio of the radii of two circles is 1 : 3. The ratio of their areas is
A.1 : 6
B.2 : 9
C.1 : 9 ✓ (Correct)
D.6 : 9
Explanation: Ratio of areas $= (r_1/r_2)^2 = (1/3)^2 = 1 : 9$[cite: 5, 6].
ADRE 2024 • 2024 Paper 3Question 6
The maximum area of the circle that can be drawn within a square of side 4 cm is
A.4π^2 sq. cm
B.4π sq. cm ✓ (Correct)
C.4/π sq. cm
D.π^2/4 sq. cm
Explanation: Max radius $r = 4/2 = 2$ cm. Area $= \pi r^2 = \pi (2)^2 = 4\pi\text{ cm}^2$[cite: 5, 6].
Want to Solve Full Official ADRE Mock Tests?
Test your timed performance under real SLRC exam conditions.
Start Free Full Mock Test →