6. Two triangles are similar, if one side of the smaller triangle is half of the corresponding side of the larger triangle, and the perimeter of the larger triangle is 52 cm , then what is the perimeter of the smaller triangle?

he point \( M(-4,-6) \) is rotated \( 90^{\circ} \) clockwise around the origin. What are the coordinates of he resulting point, \( M \) ?

(c): One of the statements below is true for the perimeter of triangle D . Tick \( (\checkmark) \) the correct one. The perimeter is less than 24 cm . Therimeter is 24 cm . Explain you answer.

¿Cuál es la fórmula general para calcular el volumen de un prisma?

Write the coordinates of the vertices after a rotation \( 180^{\circ} \) clockwise around the origin.

31 Donats \( \overrightarrow{\mathrm{u}}\left(\frac{1}{2}, k\right) \) i \( \overrightarrow{\mathrm{v}}\left(\frac{1}{2}, 0\right) \), calcula \( k \) perquè \( \overrightarrow{\mathrm{u}} \mathrm{i} \overrightarrow{\mathrm{v}} \) formir un angle de \( 60^{\circ} \).