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Question
secondary 3 | E Maths
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pls help with i and ii thank you
Date Posted: 4 years ago
Views: 216
(i)
PQ = 4+5 = 9 cm
short vertical height from Q
= 5-4 = 1 cm
use pythagoras theorem,
PQ² = AB² + 1²
AB = √80 = 8.94 cm
(ii)
cos anglePQB = 1/9
angle PQB = 83.62 deg
PQ = 4+5 = 9 cm
short vertical height from Q
= 5-4 = 1 cm
use pythagoras theorem,
PQ² = AB² + 1²
AB = √80 = 8.94 cm
(ii)
cos anglePQB = 1/9
angle PQB = 83.62 deg
See 1 Answer
done
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clear
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The trick to do here is to draw a horizontal line which I have marked in red ink.
Date Posted:
4 years ago
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