120/12=x
120/12=10
Then answer to this problem is B
It must be a parallelogram.
Answer:

Step-by-step explanation:
An isosceles triangle has two equal sides and the two opposite angles to the sides to be equal.
Given that; RP = RS, RQ and PS are common,
RP = SQ (opposite sides of parallelogram RPQS)
PQ = RS (opposite sides of parallelogram RPQS)
ΔRPS = ΔQPS (congruence property)
Thus comparing triangles PQR and SQR,
=
(similarity property)
<PRS = <PRQ + <SRQ (bisection of included <PRS)
<PQS = <PQR + <SQR (similatity property to <PRS)
=
(congruence property)
But, SRQ = PQR
So that;
Therefore by Side-Angle-Side (SAS), the required additional fact is:
Step-by-step explanation:
1/2s+38=1642
0.5s=1642-38
s=1604/0.5
s=3208
Answer:
Only n if 2n is/3 when 2nis divide by 3