Answer:
subtraction
Step-by-step explanation:
Well a right angle is 90° so all u have to do is take 10° away from that
First i got the area which is : A= a+b divided by 2 x height
=2.5+3.5 divided by 2 x 2= 6
Area = 6
To get the perimeter you just add all the sides together so: 3.5+2.5+2.5+2.5= 11
