Solve for x and y and explain

Points d and e are midpoints of the sides of triangle abc. the perimeter of the triangle is 48 units. what is the value of t? ο ο ο ο 7t +

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?