That is a 30 60 90 triangle.
Read about those here: http://www.1728.org/trig2.htm
Answer:
m <ADB = <u>90° + ½ r</u>
Step-by-step explanation:
explanation attached. brainliest would be nice.
Let number of senators = x, then:-
number of representatives = 5x - 25 so
x + 5x - 25 = 515
6x = 540
x = 90
number of reps = 515 - 90 = 425
so there are 90 senators and 425 representatives.
Answer:

Step-by-step explanation:
Given



Required
Determine R
This question will be solved using line ratio formula

Where



Since R is on A and B;



Hence;



becomes


