alleryr = 7 cm ଏବଂ l = 25 cm ଥିବା ଏକ କୋନର ସମଗ୍ର ପୃଷ୍ଠତଳର କ୍ଷେତ୍ରଫଳ ନିର୍ଣ୍ଣୟ କରନ୍ତୁ (pi = 22/7)।
A704 cm²
B858 cm²
C154 cm²
D550 cm²
Answer & Solution
Correct answer: A. 704 cm²
ସମଗ୍ର କ୍ଷେତ୍ରଫଳ ହେଉଛି pi r (l + r) = 22 x 32 = 704 ବର୍ଗ ସେଣ୍ଟିମିଟର, ଯେଉଁଥିରେ ବକ୍ର ପୃଷ୍ଠତଳ 550 ଏବଂ ଭୂମିର କ୍ଷେତ୍ରଫଳ 154 ଅନ୍ତର୍ଭୁକ୍ତ।
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?