Tom wants to reach second floor window on a house that is 20 feet above ground. if he must put the ladder at a 70° angle to the ground, how long must the ladder be?

21.28 feet

Step-by-step explanation:

Using the attached image, the length of the ladder is x. This represents the hypotenuse side of the right angled triangle that was formed. The height of the window from the floor is the opposite side. Thus going by SOH CAH TOA,

sin 70° = 20/x

x = 20/sin 70°

= 21.28 feet

The ladder must be 21.28 feet long

8496 cars

step-by-step explanation:

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: