<p>could anyone answer this question for me?</p>
<p>answer shud be D (3.63)</p>
<p>i basically made a quad and figure out angle formed by the 2 radii connecting A and B, which is (360-90-90-50)= 130. then i extend a linesegment connecint AB, forming a isocles) finally i use law of sines
sin25/2= sin130/x solve for x</p>
<p>could you explain more how you figured out the angle was 130?</p>
<p>didnt have geometry :(</p>
<p>suree
so the interior angles of a quadrilateral add up to 360
we know 3 out of four angles
90, 90, and 50. so u subtracts those angles form 360 and u r left with 130</p>
<p>thanks dude i get it now</p>
<p>Quick question - on a figure such as this, can one assume that, unless the problem specifies otherwise, the figure is drawn to scale? Because doing that, one can easily tell that the answer should just be a little less than 4, and 3.63 makes sense without even doing any math. Not an ideal strategy, but it seems to be obvious on this one.</p>
<p>Yea I got this question in the CB subject test review book…I just guestimated and used a bit of common sense.</p>
<p>So like I know that since the radius is 2, AB must be between 4 and 2…by the looks of the drawing, closer to 4. 3.63 looked about rite, so I chose it. But actually knowing how to do it is a lot better lol.</p>