Find the area of a rhombus with diagonals 9 ft. and 12 ft.
49 sq. ft.
54 sq. ft.
108 sq. ft.

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

In the diagram of circle o, what is the measure of zabc?

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?