Mathematics Past Questions

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2426

In \(\bigtriangleup\) XYZ, XKZ = 90O, XK = 15cm, XZ = 25cm and YK = 8cm. Find the area of \(\bigtriangleup\)XYZ

A. 190 sq.cm
B. 20 sq.cm
C. 210 sq.cm
D. 160sq.cm
E. 320sq.cm

View Answer & Discuss (3) JAMB 1985

2427

In the figure, MNQP is a cyclic quadrilateral. MN and Pq are produced to meet at X and NQ and MP are produced to meet at Y. If MNQ = 86o and NQP = 122o find (xo, yo)

A. 28^o, 36^o
B. 36^o, 28^o
C. 43^o, 61^o
D. 61^o, 43^o
E. 36^o, 43^o

View Answer & Discuss (5) JAMB 1985

2428

In the figure POQ is the diameter of the circle PQR. If PSR = 145o, find xo

A. 25^o
B. 35^o
C. 45^o
D. 125^o
E. 55^o

View Answer & Discuss (2) JAMB 1985

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2429

In the figure, GHIJKLMN is a cube of side a. Find the length of HN.

A. \(\sqrt{3a}\)
B. 3a
C. 3a²
D. a\(\sqrt{2}\)
E. a\(\sqrt{3}\)

View Answer & Discuss (4) JAMB 1985

2430

In the figure, PQ is the tangent from P to the circle QRS with SR as its diameter. If QPR = \(\theta\)o and RQP = \(\phi\)o, which of the following relationships between \(\theta\)o and \(\phi\)o is correct

A. \(\theta\)^o + \(\phi\)^o = 90²
B. \(\phi\)^o = 90² - 2\(\theta\)^o
C. \(\theta\)^o = \(\phi\)^o
D. \(\phi\)^o = 2\(\theta\)^o
E. \(\theta\)^o + 2\(\phi\)^o

View Answer & Discuss (4) JAMB 1985

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