yolong jawab menggunakan bahasa inggris,makasiii what is isosceles,average/mean,median,parallel line,a cute angle?

an isosceles triangle is a triangle that has two sides of equal length.
average/mean is the average of all numbers in a set of numbers.
median is the number in the middle of a set of numbers.
parallel lines are two lines in a plane that do not intersect or touch.
acute angle is an angle smaller than a right angle.