The diagram shows a quadrilateral ABCD.
B
C
0
40
16 cm
Diagram NOT
accurately drawn
A
12 cm
D
AB = 16 cm.
AD = 12 cm.
Angle BCD = 40o.
Angle ADB = angle CBD = 90o.
Calculate the length of CD.
Give your answer correct to 3 significant figures.
(5)
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E
Diagram NOT accurately drawn
C
19 cm
8 cm
50o
A
3 cm
B
D
AC = 8 cm.
AB = 3 cm.
DE = 19 cm.
Angle ABC = angle CBD = angle BDE = 90o.
Angle BDC = 50o.
a) Calculate the length of CD. Give your answer correct to 3
significant figures.
(4)
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©JustMaths 2013