1.11
1.65
1.85
2.45
Correct answer is B
m = 1.05, r = 0.6 m + r = 1.05 + 0.5 = 1.65
In the diagram, find PQ if the area of triangle PQR is 35cm\(^2\)
7cm
10cm
14cm
17cm
Correct answer is A
PQ x 10 sin 30 = 35
PQ = \(\frac{35}{10 \sin 30}\)
= 7cm
836cm2
308cm2
528cm2
154cm2
Correct answer is A
Area(S) = 2\(\pi r^2 + 2 \pi rh = 2\pi r(h + r)\)
D = 14cm, 2r = D
r = \(\frac{D}{2}\)
= 7cm
S = 2 x \(\frac{22}{7} \times [7 + 12] = 44 \times 19\)
= 836cm2
PT is a tangent to the circle TYZX. YT = YX and < PTX = 50o. Calculate < TZY
50o
65o
85o
130o
Correct answer is B
XTY = 50o = TXY = \(\frac{130^o}{2}\)
= 65o
Determine the value of x in the figure
134o
81o
53o
46o
Correct answer is A
Within the triangle,
180° - (81° + 53°) = 46°
In a cyclic quadrilateral, the sum of two opposite angles = 180°
\(\therefore\) x = 180° - 46° = 134°
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