A radio station is going to construct a 5-foot tower on top of a building. the tower will be supported by three cables, each att
ached to the top of the tower and to points on the roof of the building that are 12 feet from the base of the tower. find the total length of the three cables
You need to use Pythagoras’ Theorem. A² + B² = c² and c is the hypotenuse of the right angled triangle.
The height of the tower (5 feet) is A and the distance from the end of the cable and the base of the tower (12 feet) is B. The length of ONE cable is c. So:
A² + B² = c² 5² + 12² = c² 25 + 144 = c² 169 = c² 13 = c. This is the length of one cable.
3 x 13 = 39 therefore the total length of the cables is 39 feet.
Step-by-step explanation: Lets break it down right
14th from the top with 10 girls in front which means 3 boys are in front and since there are twice as many girls as boys there are 60 girls and 30 boys so 3 boys are ahead which leaves 57 boys below him
