Answer:
so this is trapezoid
Step-by-step explanation:
the missing length would be the height means "a"
Answer:
5/V2=2.5×V2
Step-by-step explanation:
This is an isoscelle right triangle:
x²+x²=5²
2x²=5²
x=5/V2=5×V2/2=2.5×V2
where V2=sqrt(2)
1)80
2)55
3)D
4)F
5)-20
6)B
Hope that helps
