Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

Jenny wants to know how long the slide is at the playground. She knows the height from the bottom of the ladder to the top of the slide is 6 feet. The bottom of the ladder forms a right angle with the ground. She also measures the distance from the bottom of the ladder to the end of the slide which is 9 feet.

What is the length of the slide rounded to the nearest tenth?

The slide is approximately
feet long.

10.8

Robert is building a right square pyramid for a project competition as shown.

3 feet tall two feet wide

Point E is at the center of the square and point F is at the center of the base edge.

What is the approximate pyramid's slant height, DF, rounded to the nearest thousandth?
A.
3.162 feet
B.
6.324 feet
C.
4.450 feet
D.
2.828 feet

A. 3.162 feet