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BlackZzzverrR [31]
3 years ago
14

Can someone help me do this with working pls

Mathematics
1 answer:
ycow [4]3 years ago
4 0
∵ the two triangles are congruent

AB / AD = BC / DE
8/4 = 6/ DE
DE = 6 x 3 ÷ 8 = 3 cm
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