Geometry help? 3 questions only? I've uploaded the photo I I v?

RX = 50
RS = 25
XY = 60
YT = 20
RT = 20

XY/ST = RX/RS
60/ST = 50/25
ST = 30

P = 20 + 30 + 25 = 75

b) => answer

2) WD = WC = WA = 9

P = 2 * 9 + 15 = 33

b) => answer

3) B, C, A

c) => answer

I hope this helps.

1.
TS is a midsegment. Then
TR = YT = 20
RS = (1/2) * RX = (1/2) * 50 = 25

By mid-point theorem :
ST = (1/2) * XY = (1/2) * 60 = 30

Perimeter of ΔRST = TR + RS + ST = 20 + 25 + 30 = 75

The answer: b. 75


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2.
The opposite sides of rectangle are equal in length.
DC = AB = 15

In a rectangle, the 2 diagonals are equal in length and bisect each other. Therefore,
WD = WC = WA = 9

Perimeter of ΔWDC = WD + WC + DC = 9 + 9 + 15 = 33

The answer: b. 33


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3.
The longer the side of a triangle, the greater its opposite angle is.
Length of sides: AC < AB < BC
Opposite angles: B < C < A

The answer: c. B, C, A

1. b. 75
2. b. 33
3. c. B, C, A