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secondary 2 | Maths
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help me find DE pls i don’t understnad alot need this asap
Date Posted: 7 months ago
Views: 176
7 (a)
Since ABCD is a square,
AD and CD are the same length.
AD = 13 cm.
7 (b)
You will need to use Pythagoras' Theorem.
a^2 + b^2 = c^2
DE^2 + 12^2 = 13^2
DE^2 + 144 = 169
DE^2 = 169 - 144
= 25
DE = 5 cm
Since ABCD is a square,
AD and CD are the same length.
AD = 13 cm.
7 (b)
You will need to use Pythagoras' Theorem.
a^2 + b^2 = c^2
DE^2 + 12^2 = 13^2
DE^2 + 144 = 169
DE^2 = 169 - 144
= 25
DE = 5 cm
See 1 Answer
done
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I hope this helps you understand. Thank you very much.
Date Posted:
7 months ago
thank you very much
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