please answer with a brief explanation
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Answer:
AD = 8.6 cm
Step-by-step explanation:
EB = BC (Given)
4cm= BC
By Pythagoras Theorem
(EB) ² + (BC) ² = (EC) ²
(4)² + (4)² = (EC) ²
(16 + 16) = (EC) ²
√(32) = EC
4√2 cm = (EC)
4×1.4 cm = EC
5.6 cm = EC
So, AD = AE + ED
AD = 3 cm + 5.6 cm
AD = 8.6 cm..
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