Answer:
the first one
Step-by-step explanation:
y-y1=m(x-x1)
y-20=12(x-3)

simplify:

See the attached figures.
The area of this trapezoid = 576
cm²
Answer:
using Gaussian elimination method of matrix
Find out the statement true regarding the diagram given in the question
Answer
the statement is true regarding the diagram is
m∠WXY + m∠YXZ = 180°
REASON
As shown in the diagram
∠WXY and ∠ YXZ are supplementary angles.
Supplementary angle definition
Two Angles are said to be Supplementary when there sum is equal to 180 °.
thus we get
m∠WXY + m ∠YXZ = 180 °
Therefore the m∠WXY + m∠YXZ = 180° is the true statement.