Answer:
AA Similarity Postulate
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent
step 1
Verify the proportion of the corresponding sides

substitute

----> is true
Corresponding sides are proportional
Triangle PQR is similar to Triangle PST
That means
Corresponding angles must be congruent
side QR is parallel side ST
and
----> by corresponding angles
--> by corresponding angles
so
PQR is similar to PST by AA Similarity Postulate
Do 12x-9 + 141 = 180 (add -9 and 4)
12x +132= 180 (Subtract 132 from 180)
12x =48 (Divide 48 by 12)
x=4
12/13 would be your answer if you were to simplify your answer
Answer:
25
Step-by-step explanation:
32% = 32/100 = 0.32
Let the unknown number be x.
0.32 x = 8
x = 25
Step-by-step explanation:
Perimeter of the given triangle = x + x + x + 7 = (3x + 7) units.