1. Найдите координаты вектора \( \overrightarrow{K P} \), если известны координаты точек \( \mathrm{K}(-3 ; 7), \mathrm{P}(2 ; 4) \)

10. \( \triangle A B C \) is right angled at \( A \). \( A D \) is perpendicular to \( B C \). If \( A B=8 \mathrm{~cm}, B C=10 \mathrm{~cm} \) and \( A C=6 \mathrm{~cm} \). Find the area of \( \triangle A B C \). Also, find the length of \( A D \). 214

Si el perímetro de un círculo es \( 10 \pi \mathrm{~cm} \). ¿cuál es el área de su semicirculo?

4] (a) If the points \( A(1,4), B(-1,-2) \) and \( C(2,-3) \) are vertices atriangle, prove that.. \( \triangle A B C \) is right angled at \( B \), and find its area

1. \( \triangle A B C \) is right angled at \( A \). \( A D \) is perpendicular to \( B C \). If \( A B=8 \mathrm{~cm}, B C=10 \mathrm{~cm} \) and \( A C=6 \mathrm{~cm} \). Find the area of \( \triangle A B C \). Also, find the length of \( A D \).

14. Find the radius of a hemisphere of volume \( 80 \mathrm{~cm}^{3} \)