235. Un triangolo rettangolo ha i cateti di 21 cm e 28 cm e l'ipotenusa \( 5 / 4 \) del cateto maggiore. Calcola la misura dell'altezza relativa all'ipotenusa. \( \quad[16,8 \mathrm{~cm}] \)

1 Draw a ring around the part of a circle that is not a straight line.

Suppose the general form for the equation of a circle is \[ x^{2}+y^{2}-12 x+20 y+130=0 \] Enter the standard form of the circle.

12. On the Allen-Bradley Company building in Milwaukee, four clocks face in four different directions. The minute hand on each clock is \( 20^{\prime} \) long. How far does the tip of each minute hand travel in a day \( \begin{array}{ll}\text { a. measured in degrees? } & \text { b. measured in feet? }\end{array} \)

¿Cuál es área de la estrella ninja? El cuadrado mide 2 cm por la

1 Draw a ring around the part of a circle that is not a straight line.