The acute angles of a right triangle are a) complementary b) congruent c) unique d) supplementary e) linear pair

Cause their sum is 90 degree and I think the name for them is d, supplementary

A triangles interior angles, when added = 180 degreesand if u have a right triangle, then ur right angle measures 90 degreesso ur acute angles would have to, when added = 90 degrees for the total of ur angles to equal 180.
and when 2 angles are added, and they equal 90 degrees, they are complementary angles.

so ur answer is : complimentary