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secondary 3 | E Maths
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I don't understand how to do part (ii) and (iii)
Date Posted: 4 years ago
Views: 238
Draw a right angle triangle BCD with C as 90 deg.
Tan BCD = 3/4
BCD put in calculator. You should get something around 36.86989765 degrees.
Tan BCD = 3/4
BCD put in calculator. You should get something around 36.86989765 degrees.
Part 3, find the length BD by Pythagoras.
BD = 5 cm
Then we extract right angled triangle HBD and do Toa cah Soh like the other triangle in part ii.
BD = 5 cm
Then we extract right angled triangle HBD and do Toa cah Soh like the other triangle in part ii.
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done
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Here
Date Posted:
4 years ago
done
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cosine rule
Date Posted:
4 years ago
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