The area,
a
aa, of a trapezoid is calculated using the formula
a
=
1
2
(
b
+
c
)
h
a=
2
1

(b+c)ha, equals, start fraction, 1, divided by, 2, end fraction, left parenthesis, b, plus, c, right parenthesis, h, where
h
hh is the height of the trapezoid and
b
bb and
c
cc are the bases of the trapezoid.

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula

d

because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram