21. A triangte and a parattelogram have the same base and the same area. If the sides bf the frangle are \( 26 \mathrm{~cm}, 28 \mathrm{~cm} \) and 30 cm and the paraltelogram stands on the base 28 cm , find the height of the paratletogram.

How do you rotate 270 degrees counterclockwise about the origin? What is the rule for rotating 270 degrees about the origin? 

Area and Circumference of a Circle Determine the area and circumference of a circle with diameter 18 inch Use 3.14 for \( \pi \). Round your answers to the nearest hundredth as neede Area \( =\square \) Select an answer \( \vee \) Circumference \( =\square \)

Area and Circumference of a Circle Determine the area and circumference of a circle with radius 17 cm . Use the \( \pi \) button on your calculator and round your answers to the nearest hundrei Area \( =\square \) Select an answer \( \vee \) Circumference \( =\square \)

A rectangular field 225 ft by 120 ft has a ring of uniform with cut around the outside edge. The ring leaves \( 65 \% \) of the field uncut in the center. What is the width of the ring?

Given that the two triangles are similar, solve for x if AU = 20x + 108, UB = 273, BC = 703, UV = 444, AV = 372 and AC = 589.