Question: A straight triangular prism is given, which is based on an isosceles triangle with a side edge of 15 cm. A slit is drawn through

A straight triangular prism is given, which is based on an isosceles triangle with a side edge of 15 cm. A slit is drawn through the base of this triangle and the opposite vertex of the upper base, forming an angle of 45 with the base of the prism. Calculate the area of the slit if the height of the prism is 12 cm.

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