एका नियमित बहुभुजाकृतीची परिमिती 40 cm आणि अपोथेम (apothem) 6 cm आहे. तिचे क्षेत्रफळ किती आहे?
A240 cm²
B46 cm²
C120 cm²
D60 cm²
Answer & Solution
Correct answer: C. 120 cm²
क्षेत्रफळ हे परिमितीच्या निम्म्या आणि अपोथेमच्या गुणाकाराएवढे असते, म्हणून 0.5 x 40 x 6 = 120 चौरस सेंटीमीटर.
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?