评论
打印
答案：B
解析：
Choice B is correct. The sum of the three interior angles in a triangle is 180 degrees. If the measures of two interior angles in the triangle sum to 70 degrees, then the third angle must measure 110 degrees. If the measure of angle B is x and the measure of angle A is one-half of the measure of angle B comma then the measure of angle A is x/2. Therefore, x/2+x+110 is the sum of the measures of the angles in triangle ABC.
