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klasskru [66]
3 years ago
8

PLEASE HELP ME 20 POINTS FIR THE CORRECT ANSWER

Mathematics
1 answer:
Yanka [14]3 years ago
8 0

Answer:

AC ≈ 11 cm

Step-by-step explanation:

i used the pythagorean theorem twice . . .

1st was with ΔCED:

EC² + 7² = 8²

EC² = 64-49

EC = √15

2nd was with ΔAED:

AE² + 7² = 10²

AE² = 100-49

AE = √51

√51 + √15 ≈ 11

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