A) Perimeter of Trapezium = 8+5+6+15.5
= 34.5in
Area= 1/2*(a+b)*h
=1/2*(8+15.5)*4
=47in^2
B)Perimeter= 12+6+8.5
=26.5mm
Area=1/2*b*h
=1/2*12*4
=24mm^2
Answer is 10.2 + 3.1x
Solve by combining like terms
Answer: 20−12/3=?16
16=16
True
Step-by-step explanation: hope this help:)