The diameter of a wheel of a car is 70 cm. How much distance will it cover in making 50 revolutions ?
- A350 m
- ✓110 m
- C165 m
- D220 m
Answer: B.
View full solution →Question types
Perimeter and Area [NEW] question types
18 questions across 3 question groups — pick any mix to generate a MATHS paper with step-by-step answer keys.
18
Questions
3
Question groups
5
Question types
Sample Questions
Perimeter and Area [NEW] questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
The circumference of a circle is 88 cm. Its diameter is
- ✓28 cm
- B42 cm
- C56 cm
- Dnone of these
Answer: A.
View full solution →The diameter of a circle is 7 cm. Its circumference is
- A44 cm
- ✓22 cm
- C28 cm
- D14 cm
Answer: B.
View full solution →The cost of putting a fence around a square field at ₹ 25 per metre is ₹ 2000. The length of each side of the field is
- A80 m
- B40 m
- ✓20 m
- Dnone of these
Answer: C.
View full solution →The length of the diagonal of a square is 20 cm. Its area is
HINT : Area of a square $=\frac{1}{2} d^2$.
HINT : Area of a square $=\frac{1}{2} d^2$.
- A$400~cm^2$
- ✓$200~cm^2$
- C$300~cm^2$
- D$100 \sqrt{2}~cm^2$
Answer: B.
View full solution →Assertion (A): The circumference of a circle of radius $r$ is equal to $2 \pi r$.
Reason (R): The ratio of the circumference and the diameter of a circle is equal to π.
Reason (R): The ratio of the circumference and the diameter of a circle is equal to π.
- ✓Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- BBoth Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- CAssertion (A) is true but Reason (R) is false.
- DAssertion (A) is false but Reason (R) is true.
Answer: A.
View full solution →Assertion (A): The cost of fencing a rectangular plot of land of length 24 m at 100 per metre is 6400. The length and breadth of the rectangular plot are in the ratio 4 : 1.
Reason (R): The perimeter of a rectangle of length $l$ and breadth b is equal to 2($l$ + b).
Reason (R): The perimeter of a rectangle of length $l$ and breadth b is equal to 2($l$ + b).
- ABoth Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- BBoth Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
- CAssertion (A) is true but Reason (R) is false.
- ✓Assertion (A) is false but Reason (R) is true.
Answer: D.
View full solution →
Vijay purchased a farmland having length 120 m and breadth 80 m. He wished to put a fence of wire to prevent the stray animals from entering his land.
1. What is the area of the farmland ?
(a) 400 m2$\quad$(b) 9600 m2$\quad$(c) 1600 m2$\quad$(d) 4800 m2
2. What is the perimeter of the farmland ?
(a) 200 m$\quad$(b) 720 m$\quad$(c) 400 m$\quad$(d) 960 m
3. Find the cost of fencing the farmland at 15 per metre.
(a) ₹ 10800$\quad$(b) ₹ 7200$\quad$(c) ₹ 9600$\quad$(d) ₹ 6000
4. Vijay wanted to construct a house on $\frac{1}{4}$ th area of the farmland. Find the cost of tilling the remaining area at ₹2 per sq m.
(a) ₹ 7200$\quad$(b) ₹ 14400$\quad$(c) ₹ 16800$\quad$(d) ₹ 8400
View full solution →1. What is the area of the farmland ?
(a) 400 m2$\quad$(b) 9600 m2$\quad$(c) 1600 m2$\quad$(d) 4800 m2
2. What is the perimeter of the farmland ?
(a) 200 m$\quad$(b) 720 m$\quad$(c) 400 m$\quad$(d) 960 m
3. Find the cost of fencing the farmland at 15 per metre.
(a) ₹ 10800$\quad$(b) ₹ 7200$\quad$(c) ₹ 9600$\quad$(d) ₹ 6000
4. Vijay wanted to construct a house on $\frac{1}{4}$ th area of the farmland. Find the cost of tilling the remaining area at ₹2 per sq m.
(a) ₹ 7200$\quad$(b) ₹ 14400$\quad$(c) ₹ 16800$\quad$(d) ₹ 8400
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