A ladder is leaning against a vertical wall. The distance from the top of the ladder to the base of the wall is 19 feet. The distance from the base
of the wall to the bottom of the ladder is 7 feet. What is the length of the
ladder (nearest tenth)?
ladder
19 ft
7 ft

let's divide the figure into two parts.

radius of the semicircle is 3.5m. two semi-circles make a circle and

area of circle=pi×r²

area of circle=22/7×(3.5m)2².

area of circle=38.5m²

area of rectangle=length ×width

area of rectangle =18m×7m

area of rectangle =126m²

area pf figure =38.5m²+126m²

area of figure=164.5m²