Answer:
15 inches
Explanation:
James needs to use the Pythagoras theorem, which states that in a right-angle triangle, the sum of the squares of the other two sides is equal to the square of the hypotenuse.
c²=a²+b²
we know that a is 9 inches and that be is 12 inches
c²= (9)²+(12)²
c²= 81+144
c²=225
c=√225
c=15
after applying the measures to the Pythagoras theorem formula,
we found out that the length of the straight-edge needs to be 15 inches
Answer:
the sun
Explanation:
the sun is the main source of energy that drive water cycle
The ultimate source of energy that lifts and transports the atmospheric water (vapor and cloud) to its highest elevations is solar energy. It is the sun that gives enough energy to water for its evaporation.
It was in europe with leaf erickson
