Page 142 - Mathematics_Form_3

Circles

R 4. Calculate the value of x in the
following figure.
x
A

80º
FOR ONLINE READING ONLY
Q S
B
3x x
E D C

P
3x 5. In a cyclic quadrilateral WXYZ, the
side XY is extended to point P. If
T
∠ PYZ 2y= + 10° and the opposite
2. Find the angles marked by the interior angle ZWX 5y∠ = − 20° ,
letters x, y, and z in the following determine the value of y.
figure.
6. Calculate the values of x and y in
the following figure.
y
75º
x

x 3y
110º

z y

120º
3. Find the values of a, b, c, and d in
the following figure. 7. In the following figure, prove that
∆ ACE  ∆ DCB

d A Mathematics for Secondary Schools
c

B
234°

C
b
E D

a

Student\s Book Form Three 135

18/09/2025 09:59:44
MATHEMATIC F3 SB.indd 135 18/09/2025 09:59:44
MATHEMATIC F3 SB.indd 135