alleryFind the area of a square whose side is $7$ cm.
- $28$ cm²
- $42$ cm²
- $49$ cm²
- $56$ cm²
Show answer and solution
Correct answer: C. $49$ cm²
Area of a square $= \text{side}^2 = 7^2 = 49$ cm².
AFCAT Mensuration: Surface Areas & Volumes — practice questions
Explore 5 free Mensuration: Surface Areas & Volumes questions in AFCAT Mathematics. Open each question or exercise to read its content, reference answers and available explanation.
Practise Mensuration: Surface Areas & Volumes with Quill →Mensuration: Surface Areas & Volumes questions and exercises with answers
Showing questions 1–5 of 5.
Find the area of a square whose side is $7$ cm.Read the answer and worked solution →A rectangle has area $48$ cm² and breadth $6$ cm. Find its length.Read the answer and worked solution →Find the area of an equilateral triangle whose side is $6$ cm.Read the answer and worked solution →A circle has area $154$ cm². Find its circumference (take $\pi = \dfrac{22}{7}$).Read the answer and worked solution →In a right-angled triangle the hypotenuse is $13$ cm and one of the legs is $5$ cm. Find the area of the triangle.Read the answer and worked solution →
Worked practice questions
A rectangle has area $48$ cm² and breadth $6$ cm. Find its length.
- $6$ cm
- $8$ cm
- $10$ cm
- $12$ cm
Show answer and solution
Correct answer: B. $8$ cm
Length $= \dfrac{\text{Area}}{\text{Breadth}} = \dfrac{48}{6} = 8$ cm.
Find the area of an equilateral triangle whose side is $6$ cm.
- $6\sqrt{3}$ cm²
- $9\sqrt{3}$ cm²
- $12\sqrt{3}$ cm²
- $18$ cm²
Show answer and solution
Correct answer: B. $9\sqrt{3}$ cm²
Area of equilateral triangle $= \dfrac{\sqrt{3}}{4} \times \text{side}^2 = \dfrac{\sqrt{3}}{4} \times 36 = 9\sqrt{3}$ cm².
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