Mat w jednym posunięciu (w każdym zadaniu, poza ostatnim, matują białe)

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1