JAMB - Mathematics (1978 - No. 33)
Two triangles have the same areas if
two sides in one triangle are equal to two sides in the other
three sides in one triangle are equal to three sides in the other
two angles in the triangle are equal to two angles in the other
three angles in one triangle are equal to three angles in the other
one side and the opposite angle in one triangle are equal to one side and the opposite angle in the other
Пояснення
Two triangles have the same area if three sides in one triangle equal to three in the other.