Several firsts were announced yesterday for the 10th annual American College Theater Festival, to be presented in the Kennedy Center's Eisenhower Theater for two weeks starting April 10.

For the first time, the winner of both the ACTF playwriting award and the playwriting award of the David Library of the American Revolution is the same. "Sideshow," by 23-year-old Rick Smith. Angelo State University Theater, of San Angelo, Tex., will present Smith's play at the Monday opening and again matinee and evening of April 11.

Another first was the selection of Smith College's Moliere production, "The Learned Ladies," to be presented April 21 and 22. This marks the first time in the festival's 10 years a women's college has been chosen for the national festival.

The University of Montana's Missoula campus presentation of "When You Comin' Back, Red Ryder?" will be the second offering, playing the evenings of April 12 and 13 and matinee of April 13.

A musical, "The Robber Bridegroom" will have the coveted weckend spot of April 14 and 15. It will be produced by the Rhode Island College Theater of Providence.

Wayne State's "The Amorous Flea," a musical inspired by a Moliere play, will be presented April 17 and 18. "There Brig," staged by the University of Detroit's Marygrove College, is the offering April 19 and 20. Following the Smith College, dates, April 21 and 22, will come Portland State University of Oregon in "Equus," matinee and evening of April 23.

The annual evening of scenes known as "Irene Ryan Night," honoring the actress who willed her savings to scholarships, will be on Sunday, April 16 with 13 competitors from as many colleges. This area's contestant will be Catrina Ganey of Howard University.

A brainchild of actress Peggy Wood, who enthused over talents she discovered while guest artist at American universities, ACTF is presented by the Kennedy Center and the Alliance for Arts Education, produced by the American Theater Association and sponsored by Amoco Oil. The seven productions were chosen from 431 entries at Regional Festivals in 13 cities over the past two months.