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FOCA_9.1

Vocabulary for FOCA_9.1

TermDefinition
opposite In a right triangle, the side across from a given angle.
adjacent In a right triangle, the smaller side next to a given angle that is not the right angle.
hypotenuse In a right triangle, the longest side.
sine For an acute angle of a right triangle, the ratio of the measure of the leg opposite the acute angle to the measure of the hypotenuse.
cosine For an acute angle of a right triangle, the ratio of the measure of the leg adjacent to the acute angle to the measure of the hypotenuse.
tangent For an acute angle of a right triangle, the ratio of the measure of the leg opposite the acute angle to the measure of the leg adjacent to the acute angle.
altitude In a triangle, a segment from a vertex of the triangle to the line containing the opposite side and perpendicular to that side.