A right triangle is a type of triangle that has one angle measuring 90 degrees. The sides of a right triangle are referred to as the base, the height, and the hypotenuse (the longest side opposite the right angle). Calculation: The area A of a right triangle can be calculated using the formula: A=1∕2× Base × Height ⇒(1∕2)×30×h=240 ⇒h=16cm Using the Pythagorean Theorem to calculate hypotenuse c2=302+162 ⇒c2=900+256 ⇒c2=1156 ⇒c=34 Perimeter of the Triangle: The perimeter is the sum of all sides: Perimeter = base + height + hypotenuse. ⇒ Perimeter =30+16+34 ⇒ Perimeter =80cm