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IgorC [24]
3 years ago
12

A carpenter designs an A-frame chalkboard. Its support bars form the legs of an isosceles triangle.

Mathematics
1 answer:
ahrayia [7]3 years ago
6 0

angle for triangle is 180°

angle ACB is 75° because it has mention that is an isosceles triangle

So that angle of BAC is 180°-75°-75°=30°

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