(20 POINTS) I need help to find the area

For a trapezoid:

A=(17.3+10.7)×13.4/2=28×6.7=187.6 square feet

187.6 ft^2

Step-by-step explanation:

Area of trapezoid=[(b1+b2)/2]*h

A=[(10.7+17.3)/2]*13.4

A=(28/2)*13.4

A=14*13.4

A=187.6

So the area of the trapezoid is 187.6 ft^2

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

6/20

step-by-step explanation: