The base of a shipping drum is in the shape of a circle with a diameter of 20 inches. Which of the following is closest to the circumference of the base of the shipping drum?

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.