The figure is a right angled triangle. The perimeter is $56$ miles and the area is $84$ sq miles.
Work Step by Step
1. Find the name of the figure: Right angled triangle 2. Find the perimeter of the triangle Let $P =$ the perimeter $P = a + b + c$ $P = 7 + 24 + 25$ $P = 56$ miles 3. Find the area of the triangle Let $A=$ area of the triangle $A = (base \times height) \div 2$ $A = (7 \times 24) \div 2$ $A = 168 \div 2$ $A = 84$ sq miles