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ozzi
3 years ago
5

The diagram shows a square ABDE and an equilateral triangle BCD work out the size of angle EBC.​

Mathematics
1 answer:
Phoenix [80]3 years ago
8 0

9514 1404 393

Answer:

  105°

Step-by-step explanation:

∠EBC = ∠EBD + ∠DBC

∠EBC = 45° + 60°

∠EBC = 105°

__

The diagonal of the square bisects the 90° corner angle, so the portion of interest is 90°/2 = 45°.

An equilateral triangle has all three angles the same: 180°/3 = 60°.

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Required

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