Task 1 four tangents are drawn from e to two concentric circles, a, b,c, and d are the points of tangency. name as many pairs of congruent triangles as possible and tell how you can show each pair is congruent.

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

you bought 31 v bucks

step-by-step explanation:

25+6=31