A two-kilometre \( (2 \mathrm{~km}) \) pler and a one-kilometre \( (1 \mathrm{~km}) \) pler extend perpendlcularly into the ocean with four kilometres \( (4 \mathrm{~km}) \) offshore between the two plers. A swimmer wishes to swim from the end of the longer pier to the end of the shorter pler with one rest stop on the beach. Assuming that the swimmer recalls that, in any right-angled triangle, Hypotenese Find the shortest possible length of the swim and the location of the rest stop (land distance from the longer pier).

9. Find the co-ordinates of the point on \( x \)-axis which are at a distance of 13 units from (7.5) SECTION B (2mks)

Dibuja un círculo con un radio de 5 cm. Luego, marca el centro del círculo y etiqueta el punto.

Un semicírculo tiene un radio de 7 cm. Calcula el área del semicírculo.

188 Un parallelogramma è equivalente al quadrato il cui lato misura 15 cm . Sapendo che le altezze relative a due lati consecutivi misurano rispet- tivamente 18 cm e 10 cm , calcola il perimetro del parallelogramma. [70 cm]

5. La ecuación de la recta que pasa por los puntos \( (-2,2) y(4,-1) \) es: \( \begin{array}{ll}\text { a. } x+2 y-2=0 & \text { b. } 2 x-y-1=0 \\ \text { c. }-x+y+2=0 & \text { d. } 2 x+y-1=0\end{array} \)