Question
Which Index number satisfies both the time reversal test
and the factor reversal test?Solution
Only Fisher's index number is the ideal index number which satisfies time reversal and factor reversal test.
The radius of the incircle of a triangle is 6 cm. if the area of the triangle is 30 cm 2 , then its perimeter is?
ABC is a triangle. AB = 5 cm, AC = √41 cm and BC = 8 cm. AD is perpendicular to BC. What is the area (in cm2) of triangle ABD?
PQRS is a cyclic quadrilateral of which PQ is the diameter. Diagonals PR and QS intersect at A. If SQR = 25°, then angle PAS measures
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In the given figure, B and C are the centres of the two circles. ADE is the common tangent to the two circles. If the ratio of the radius of both the ci...
In a parallelogram, two adjacent angles are (3x + 10)° and (x + 30)°. Find the larger angle.
In the given figure. ABCDEF is a regular hexagon whose side is 6 cm. APF, QAB, DCR and DES are equilateral triangles. What is the area (in cm2
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In triangle ABC, AB = AC. Point D lies on AB such that AD = DC = BC. Find the value of ∠BDC.
A cuboid of size 50 cm × 40 cm × 30 cm is cut into 8 identical parts by 3 cuts. What is the total surface area (in cm2) of all the 8 parts?...
