Aclassmate believes that a triangle can have both a right angle and an obtuse angle. which of the following statements would you pick to convince him that he is incorrect (a) it is not possible because the sum of the angles in the triangle can’t exceed 180° (b)it is not possible because if a triangle has an obtuse triangle, that means all the angles are obtuse angles. (c) it is not possible because if a triangle has a right triangle, that means all the angles are right angles (d)it is possible. the classmate is correct

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following