Answer:
36 cm
Step-by-step explanation:
rectangle perimeter = sum of all the side
10+8+10+8=36 cm
Only the numerators are added if both has the same denominator. But if they have different denominators, all you have to do is find the smallest multiple of both numbers, so you multiply by whatever to get that on both the numerator and denominator.
I would say D, but I'm not quote sure because my school just started this today actually so wait for somebody else to help. Sorry
Answer: 1089 (area)
Area of a trapezoid: A=b1+b2(h)/2