alleryਇੱਕ ਕਮਰਾ 10 ਮੀਟਰ ਲੰਬਾ, 8 ਮੀਟਰ ਚੌੜਾ ਅਤੇ 3 ਮੀਟਰ ਉੱਚਾ ਹੈ। ਇਸਦੀਆਂ ਚਾਰ ਦੀਵਾਰਾਂ ਦਾ ਕੁੱਲ ਖੇਤਰਫਲ ਕਿੰਨਾ ਹੈ?
A240 m²
B108 m²
C216 m²
D144 m²
Answer & Solution
Correct answer: B. 108 m²
ਚਾਰ ਦੀਵਾਰਾਂ ਦਾ ਖੇਤਰਫਲ 2(l + b)h = 2 x 18 x 3 = 108 ਵਰਗ ਮੀਟਰ ਹੈ।
Keep practising Geometry & Mensuration
Browse all Geometry & Mensuration questions for RRB NTPC, or explore more Quantitative Aptitude topics.
Related questions
In three dimensions, what formula gives the volume inside a sphere of radius r?Which algebraic expression calculates the total exterior area bounding a sphere of radius For a circular cylinder of base radius r and height h, which formula gives its volume?Which formula gives the curved side area of a right cylinder with radius r and height h?What geometric solid is generated by rotating a rectangle about one of its sides?What is the longest line segment that can be drawn between two points on a sphere?What metric area corresponds to one million square metres?How many square centimetres are contained in one square metre?