21/9 + 74/9 = (21 + 74)/9 = 95/9 = 10 5/9
Answer:
4 m
Step-by-step explanation:
The geometry is that of a right triangle with hypotenuse 8.5 m and one side of length 7.5 m. If "b" represents the distance from the base of the ladder to the wall, the Pythagorean theorem tells us ...
b² + 7.5² = 8.5²
b² + 56.25 = 72.25
b² = 16 . . . . . . . . . . . . . subtract 56.25
b = 4 . . . . meters . . . (take the square root)
The base of the ladder is 4 m from the wall.
_____
You may recognize this as the 8-15-17 Pythagorean triple, scaled by 1/2.
Answer:
31.9572
Step-by-step explanation:
substituted the numbers, added them and easily divided them to get the decimal point.
The correct answer is parallel
<span>The polygons are not similar. hope this helped </span>
