# College Math II

posted by .

Show a complete solution to each problem.

Find the exact length of the side of a square whose diagonal is 3 feet.

I am having problems understanding how you figure out this problem. Can someone help me? Thanks.

• College Math II -

Draw a square. Draw a diagonal. Let each side length be x.

The Pythagorean theorem tells you that x^2 + x^2 = 2x^2 = 3^2 = 9
Solve for x.

## Similar Questions

1. ### Algebra

Can someone help me figure out what formula I am to use for this word problem?
2. ### Math

I'm doing some word problems on finding the areas of rectangles, its just like all complicated. I don't understand how to do them. For example: A square field had 3 m added to its length and 2m added to its width. The area is 90 m2(squared). …
3. ### College Math II

If a ball is tossed into the air from a height of 6 feet with a velocity of 32 feet per second, then its altitude at time t (in seconds) can be described by the function A(t) = - 16t^2 + 32t + 6. Find the altitude of the ball at 2 …
4. ### College Math II

Write a complete solution to each problem. If the length of a rectangle is 3 feet longer than the width and the diagonal I s 15 feet, then what are the length and width?
5. ### Algebra 1

I am having difficulties solving this problem. It is part of a review for a Square Roots test for tomorrow. Here is the question: A rhombus is a figure with two pairs of parallel sides all of equal length. Sketch the rhombus whose …
6. ### math

find the length of a side of a square whose diagonal is 36 inch show all work
7. ### math

Shelly sews a blanket that has an area of 170 square feet. it has 30 square blocks, each the same size. What is the approximate length of each side of a block. a. 1 foot b. 2 feet c. 3 feet d. 4 feet I doubled checked and the problem …
8. ### Algebra 2

Given the area of the figure, find its perimeter to the nearest tenth. 1. A = 90 ft^2; number of squares: 6. A: ?
9. ### Algebra 2

Given the area of the figure, find its perimeter to the nearest tenth. 1. A = 90 ft^2; number of squares: 6. 2. A baseball diamond is a square with an area of 8100 square feet. The length of the diagonal of any square is equal to √2 …
10. ### Math

Betty decides to compare the diagonals of both the square and rectangular tables customers will use in the coffee shop. Her measurements show that the square tables have a side length of 34 inches and the rectangular tables are 29 …

More Similar Questions