alleryꯂꯝꯕꯤ 12 cm ꯑꯃꯁꯨꯡ ꯄꯥꯛ-ꯆꯥꯎꯕꯥ 8 cm ꯂꯩꯕꯥ ꯔꯦꯛꯇꯟꯖꯜ ꯑꯃꯒꯤ ꯄꯦꯔꯤꯃꯤꯇꯔ ꯑꯗꯨ ꯈꯪꯖꯤꯅꯕꯤꯌꯨ:
A40 cm
B48 cm
C36 cm
D96 cm
Answer & Solution
Correct answer: A. 40 cm
ꯄꯦꯔꯤꯃꯤꯇꯔ = 2 * (ꯂꯝꯕꯤ + ꯄꯥꯛ-ꯆꯥꯎꯕꯥ) = 2 * (12 + 8) = 2 * 20 = 40 ꯁꯦ.ꯃꯤ.
Keep practising Geometry & Mensuration
Browse all Geometry & Mensuration questions for RRB NTPC, or explore more Mathematics topics.
Related questions
RRB NTPC · Perimeter and Area of ShapesFind the volume of a solid cube having edge length 5 cm:What is the sum of the three interior angles of any triangle in plane geometry?What is the circumference of a circle of radius 7 cm? (Take pi = 22/7)What is the area of a square whose side measures 15 cm?RRB NTPC · Classify 2D vs 3D FiguresRRB NTPC · Match 2D Area FormulasHow many small unit cubes can be arranged into one larger solid cube of side 3?