Answer:
b. 278 sq. in.
Step-by-step explanation:
i passed pre-algebra ik what i'm talking about
what about 4
A= 1/2Bh
A= 1/2 (10.2 x 8)
A= 1/2 (81.6)
A=81.6 / 2
A= 40.8
see the attached figure to better understand the problem
we know that
If a and b are parallel lines
then
m∠1=m∠4 --------> by alternate exterior angles
m∠3+m∠4= --------> by supplementary angles
so
m∠3+m∠1=
therefore
<u>the answer is the option</u>
m∠1 = 110° and m∠3 = 70°