WAEC Mathematics Past Questions & Answers - Page 251

1,251.

Two sides of a triangle are perpendicular. If the two sides are 8cm and 6cm, calculate correct to the nearest degree, the smallest angle of the triangle.

A.

35^o

B.

36^o

C.

37^o

D.

38^o

E.

53^o.

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

1,252.

Cos 65^o has the same value as

A.

Sin 65^o

B.

Cos 25^o

C.

Cos 115^o

D.

Cos 205^o

E.

Cos 295^o

View answer & explanation

Correct answer is E

No explanation has been provided for this answer.

1,253.

lf sin θ= \(\frac{-1}{2}\), find all the values of θ between 0° and 360°.

A.

120^o,240^o

B.

120^o180^o

C.

210^o,300^o

D.

210^o,330^o

E.

300^o,360^o

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

1,254.

Express the true bearing of 250° as a compass bearing

A.

N20^oE

B.

S20^oE

C.

N20^oW

D.

S70^oW

E.

S70^oE

View answer & explanation

Correct answer is D

250° = S 70° W

1,255.

The angle of elevation of a point T on a tower from a point U on the horizontal ground is 30^o. If TU = 54m, how high is T above the horizontal ground?

A.

108m

B.

72m

C.

46.3m

D.

31.2m

E.

27m

View answer & explanation

Correct answer is E

No explanation has been provided for this answer.

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