Answer:
1. 15
2. 11
3. 52
4. a. 120
b. 60°
c. 120°
d. 60°
Step-by-step explanation:
1. BE = ST
4c -5 = c + 10
c = 5
ST = 5 + 10 = 15
2. BT = ES
2b+3 = b + 7
b= 4
ES = 4 + 7 = 11
3. P = BE + ES + ST + BT
= 15 + 11 + 15 + 11
= 52
4. angle T and S are corresponding angle whose sum is 180
T + S = 180
a + 10 + 2a + 20 = 180
a = 50
angle T = 50+10= 60 = angle E
angle S = 2(50)+ 20 = 120 = angle B
sana nakatulong
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