Please help Ricardo is constructing the inscribed circle for △ABC. He has already used his compass and straightedge to complete the part of the construction shown in the figure.

Which construction could be his next step?

Construct the angle bisector of ∠A.
Construct the line through points A and R.
Construct the angle bisector of ∠SBQ.
Construct the perpendicular to BC⎯⎯⎯⎯⎯ through point R.

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?