A circle has a circumference of 1{,}133.541,133.541, comma, 133, point, 54 units. What is the diameter of the circle?

answer in units

In the 30-60-90 triangle below side s has a length of and side r has a length

Find percent notation for 0.008 0.008=

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2