Which triangle is equal in area to ΔVWZ
ΔVXZ
ΔVYZ
ΔXYV
ΔWYV
ΔWYZ
Correct answer is B
Area of Δ VYZ = Area of Δ VWZ (same base and within same parallel)
In the diagram above PS||RQ, |RQ| = 6.4cm and perpendicular PH = 3.2cm. Find the area of SQR
5.12cm2
9.60cm2
10.24cm2
20.48cm2
40.96cm2
Correct answer is C
Area of a triangle = 12×b×h
Area of Δ SQR = 12×6.4×3.2
= 10.24 cm2
In the diagram above, WXYZ is a rhombus and ∠WYX = 20°. What is the value of ∠XZY
20o
30o
45o
60o
70o
Correct answer is E
Diagonals bisect at 90°; < YXZ = 90° - 20° = 70°
But ZY = XY (sides of a rhombus)
∴ < XYZ = 70° (base angle of an isos. triangle)
In the diagram above, |PQ| = |PR| = |RS| and ∠RPS = 32°. Find the value of ∠QPR
72o
64o
52o
32o
26o
Correct answer is C
From the figure, < PSR = 32° (base angles of an isos. triangle)
\therefore < PRS = 180° - (32° + 32°) = 116° (sum of angles in a triangle)
< QRP = 180° - 116° = 64° (angle on a straight line)
< PQR = 64° (base angles of an isos. triangle)
< QPR = 180° - (64° + 64°) = 52°
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