Math  /  Geometry

Question9 5ABCDE5 A B C D E is part of an nn-sided regular polygon and angle BAC=22.5B A C=22.5^{\circ}.
Find (a) angle ACBA C B.
Answer angle ACB=22.5..A C B=\ldots 22.5^{\circ} \ldots \ldots \ldots . .^{\circ} [1] (b) angle ABCA B C. =135=135^{\circ}
Answer angle ABC=13.3..[1]A B C=\ldots 13.3 \ldots \ldots \ldots \ldots . .^{\circ} \quad[1] (c) the value of nn. Answer n=n=\ldots \ldots \ldots \ldots \ldots \ldots \ldots [3]

Studdy Solution
Verify the value of nn. From earlier calculations, n=8n=8.
n=8 n = 8
Solution: (a) ACB=112.5\angle ACB = 112.5^\circ (b) ABC=45\angle ABC = 45^\circ (c) n=8n = 8

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