Помогите пожалуйста!!!!!!!!

13:

lt;Т = 360-90-130-90 = 50 гр.

lt;TSP = lt;TPS =gt; lt;TSP = lt;TPS = 1/2*(180 - lt;T) = 65 гр.

14:

lt;ABE = 90-65 = 25 гр.

lt;ACB = 180-65-53 = 62 гр.

lt;EBC = 90-62 = 28 гр.

lt;DCB = 90-53 = 37 гр.

lt;CMB = 180 - lt;DCB - lt;EBC = 180-37-28 = 115 гр.

17:

PS/SR = =gt; lt; PRS = 30 гр.

lt;PRQ = 2 * lt;PRS = 60 гр. =gt; lt;PQR = 90-60 = 30 гр. =gt; lt;RQT = 180-30 = 150 гр.

lt;SRQ = lt;SQR =gt; SR = SQ = 15.6

18:

MR = RN

P(MKR) = MK+KR+MR = MK+KR+RN = MK+KN

32 = MK+26

MK = 6