Year : 
1996
Title : 
Mathematics (Core)
Exam : 
WASSCE/WAEC MAY/JUNE

Paper 1 | Objectives

31 - 40 of 49 Questions

# Question Ans
31.

In the diagram above, /PQ/ = /PS/ and /QR/ = /SR/. Which of the following is/are true? i. the line PR bisects ∠QRS ii. The line PR is the perpendicular bisector of the line segment QS iii. Every point on PR is equidistant from SP and QP

A. I only

B. III only

C. I and II only

D. I and III only

E. I, II and III

E

32.

In the diagram, ∠PMN = ∠PRQ and ∠PNM = ∠PQR. If /Pm/ = 3cm, /MQ/ = 7cm and /PN/ = 5cm, find /NR/

A. 1cm

B. 3cm

C. 31/2

D. 5cm

E. 6cm

A

33.

In the diagram above, PQ is a tangent to the circle MTN at T. What is the size of ∠MTN?

A. 52o

B. 54o

C. 66o

D. 72o

E. 128o

C

34.

In the diagram above, KLMN is a cyclic quadrilateral. /KL/ = /KN/, ∠NKM = 55o and ∠KML = 40o. Find ∠LKM

A. 35o

B. 40o

C. 45o

D. 50o

E. 55o

C

35.

In the diagram above, ∠SPQ = 79o. Find ∠SRQ

A. 11o

B. 391/2

C. 79o

D. 90o

E. 101o

E

36.

Two angles (a + 31) and (b - 49o) are adjacent angles on a straight line. Which of the following is true

A. a + b = 198o

B. a + b = 180o

C. a + b = 162o

D. a + b = 100o

E. a + b = 80o

Detailed Solution

a + 31 + b - 49 = 180o(sum of angles on str line)
a + b - 18 = 180o
a + b = 180 + 18
a + b = 198o
37.

The trapezium PQRS parallel to SR,∠PQS = 34o and ∠SPQ = 2 ∠SRQ. Find the size of, SQR

A. 58o

B. 68o

C. 78o

D. 90o

E. 112o

Detailed Solution

considering SPQ
S = 34o (base ∠s of Isos. Δ)
P = 180o - 68o = 112o
R = 122/2 = 56o
a = 34o (alt ∠s)
SQR = 180o - (56 + 34)
180o - 90o = 90o
38.

In the diagram above, AB, CD and XY are straight lines intersecting at W. Find ∠CWX

A. 20o

B. 80o

C. 100o

D. 120o

E. 140o

Detailed Solution

a = 40o (vertical opp. ∠s are equal) b = 60o
a + b + c = 180o (sum of ∠s on a str line)
40o + 60o + c = 180o
C = 180o - 100o
C = 80o
39.

If sin\(\theta\) cos\(\theta\), for 0o \(\leq\) θ \(\leq\) 360o, find the value of \(\theta\)

A. 45o, 225o

B. 135o, 315o

C. 45o, 315o

D. 135o, 225o

E. 45o, 135o

A

40.

If tan x = \(2\frac{2}{5}\), find the value of sin x; 0 \(\leq\) x \(\leq\) 90o

A. 5/13

B. 5/12

C. 144/169

D. 12/13

E. 13/12

Detailed Solution

Tan x = 22/5 = 12/5
sin x = 12/13
31.

In the diagram above, /PQ/ = /PS/ and /QR/ = /SR/. Which of the following is/are true? i. the line PR bisects ∠QRS ii. The line PR is the perpendicular bisector of the line segment QS iii. Every point on PR is equidistant from SP and QP

A. I only

B. III only

C. I and II only

D. I and III only

E. I, II and III

E

32.

In the diagram, ∠PMN = ∠PRQ and ∠PNM = ∠PQR. If /Pm/ = 3cm, /MQ/ = 7cm and /PN/ = 5cm, find /NR/

A. 1cm

B. 3cm

C. 31/2

D. 5cm

E. 6cm

A

33.

In the diagram above, PQ is a tangent to the circle MTN at T. What is the size of ∠MTN?

A. 52o

B. 54o

C. 66o

D. 72o

E. 128o

C

34.

In the diagram above, KLMN is a cyclic quadrilateral. /KL/ = /KN/, ∠NKM = 55o and ∠KML = 40o. Find ∠LKM

A. 35o

B. 40o

C. 45o

D. 50o

E. 55o

C

35.

In the diagram above, ∠SPQ = 79o. Find ∠SRQ

A. 11o

B. 391/2

C. 79o

D. 90o

E. 101o

E

36.

Two angles (a + 31) and (b - 49o) are adjacent angles on a straight line. Which of the following is true

A. a + b = 198o

B. a + b = 180o

C. a + b = 162o

D. a + b = 100o

E. a + b = 80o

Detailed Solution

a + 31 + b - 49 = 180o(sum of angles on str line)
a + b - 18 = 180o
a + b = 180 + 18
a + b = 198o
37.

The trapezium PQRS parallel to SR,∠PQS = 34o and ∠SPQ = 2 ∠SRQ. Find the size of, SQR

A. 58o

B. 68o

C. 78o

D. 90o

E. 112o

Detailed Solution

considering SPQ
S = 34o (base ∠s of Isos. Δ)
P = 180o - 68o = 112o
R = 122/2 = 56o
a = 34o (alt ∠s)
SQR = 180o - (56 + 34)
180o - 90o = 90o
38.

In the diagram above, AB, CD and XY are straight lines intersecting at W. Find ∠CWX

A. 20o

B. 80o

C. 100o

D. 120o

E. 140o

Detailed Solution

a = 40o (vertical opp. ∠s are equal) b = 60o
a + b + c = 180o (sum of ∠s on a str line)
40o + 60o + c = 180o
C = 180o - 100o
C = 80o
39.

If sin\(\theta\) cos\(\theta\), for 0o \(\leq\) θ \(\leq\) 360o, find the value of \(\theta\)

A. 45o, 225o

B. 135o, 315o

C. 45o, 315o

D. 135o, 225o

E. 45o, 135o

A

40.

If tan x = \(2\frac{2}{5}\), find the value of sin x; 0 \(\leq\) x \(\leq\) 90o

A. 5/13

B. 5/12

C. 144/169

D. 12/13

E. 13/12

Detailed Solution

Tan x = 22/5 = 12/5
sin x = 12/13