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Mathematics Past Questions and Answers

Jamb Mathematics Questions

Question 31:

The area of a square is 144 sq cm. Find the length of its diagonal

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A 11\(\sqrt{3cm}\)
B 12cm
C 12\(\sqrt{2cm}\)
D 13cm

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Question 32:

One angle of a rhombus is 60^o. The shorter of the two diagonals is 8cm long. Find the length of the longer one.

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A 8\(\sqrt{3}\)
B \(\frac{16}{\sqrt{3}}\)
C \(\sqrt{3}\)
D \(\frac{10}{\sqrt{3}}\)

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Question 33:

If the exterior angles of a pentagon are x°, (x + 5)°, (x + 10)°, (x + 15)° and (x + 20)°, find x

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A 118^o
B 72^o
C 62^o
D 36^o

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Question 34:

A flagstaff stands on the top of a vertical tower. A man standing 60 m away from the tower observes that the angles of elevation of the top and bottom of the flagstaff are 64^o and 62^o respectively. Find the length of the flagstaff.

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A 60 (tan 62^o - tan 64^o)
B 60 (cot 64^o - cot 62^o)
C 60 (cot 62^o - cot 64^o)
D 60 (tan 64^o - tan 62^o)

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Question 35:

Simplify \(\cos^{2} x (\sec^{2} x + \sec^{2} x \tan^{2} x)\)

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A Tan x
B Tanx secx
C \(\sec^2 x\)
D Cosec²x

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