Answer:
the nearest whole number is 133
The Pythagorean theorem applies to the sides of this right triangle.
... x² + (4/7)² = (5/7)²
... x² = 25/49 -16/49
... x = √(9/49)
... x = 3/7
The unknown side has length 3/7.
_____
You might recognize that this is a 3-4-5 right triangle with a scale factor of 1/7.
The bases of the trapezoid are 24 m and 9.6 m.
The area of the trapezoid is 141.12 m².
9 and -1 9*-1=-9 and 9-1=8
In order from first pic to last:
10
2
30
70
8
99
1
11
Add 2, divide by 3
-3
