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Construct isosceles triangle ABC such that AB = AC = 10 cm and CB = 9 cm. Measure and write down the size of angle ABC.

User Husqvik
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1 Answer

3 votes

Answer:

∠ABC = 63.26°

Explanation:

cos ∠ABC = (9/2)/10

cos ∠ABC = 0.45

∠ABC = 63.26°

User Timesha
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