maths

• An equilateral triangle is a triangle with all three sides of equal length.
• In an acute triangle, all angles are less than 90 degrees.
• The Pythagorean theorem states that the square of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides.
• A right-angled triangle has one angle that measures exactly 90 degrees (a right angle).
• When applying the product rule, remember to distribute the derivative over all terms inside the parentheses.