Question

Please help me with these questions I don't understand

Answer 1

7) 44
if you add up the sides 10+9+9(the bottom side)+7+5+4=44
8) 6
the sides of the triangle are 3,4,5.
4 and 5 are shown. the  three is because you subtract 7 from 10 (the length of the side) and you get three.
then take the two sides (not the hypotenuse) and multiply them by each other. that leaves you with the area of a rectangle, so devide that number in half.
i hope this was clear and helpful!!