alleryWhat is the diagonal of a square whose side is 10 cm?
A5√2 cm
B20 cm
C10√2 cm
D10√3 cm
Answer & Solution
Correct answer: C. 10√2 cm
The diagonal is the hypotenuse of a right triangle with legs 10, so it is the square root of 200, i.e. 10√2.
Keep practising Geometry and Trigonometry
Browse all Geometry and Trigonometry questions for RRB NTPC, or explore more Mathematics topics.
Related questions
RRB NTPC · Trigonometric RatiosRRB NTPC · Triangle CentersRRB NTPC · Classify Angle TypesRRB NTPC · Match Trigonometric ValuesWhich line segment connects two points on a circle and divides it into two segments?When does the sum of two side lengths equal the third side?What total measure in degrees do the two non-right angles of a right triangle add up to?What geometric shape is the planar region bounded by two concentric circles?