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15-02-2019
Mathematics

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

A carpenter designs an Aframe chalkboard Its support bars form the legs of an isosceles triangle class=

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ailingchin030424 ailingchin030424

15-02-2019

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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