Question about Super Tutor Trigonometry (ESDTRIG) for PC

# A rectangle is 87 feet by 136 feet. find the lenght of the diagonal and the angles that it makes with side.? answers and solution

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One cubic foot is a cube one foot long, one foot high, and one foot wide. How long is 13 cubic feet is is not answerable because it could be any number of lengths depending on the lengths of the other two dimensions.

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### A rectangle is 5 feet long and 6 feet wide. what is the perimeter of the rectangle?

Hi Jacqueline:
A rectangle has four sides, the lengths of the opposite sides are equal, and the corners are right angles.
The perimeter is the distance around the outside edge, so it would be twice the length plus twice the width.
2 times 5 = 10 feet
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What is important is to understand the question.
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### A rectangle is 87 feet by 136 feet. find the length of the diagonal and the angles that it makes with the sides.

Length of diagonal =SQRT(136^2+87^2)=161.4465856 ft
One angle = arctan(87/136)=32.60... degrees
Other angle= 90-32.60=57.39 degrees

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### Need to find the diagonal of a rectangle. Problem is 5' 3 1/2" x 12' 5 1/4". Do I need to convert the fractions to a decimal? I understand to (a)2 x (b)2 = (c)2. The inches with fraction is my problem!...

ra4942 ,

Yes, you would have to convert the fractions into decimal notation, represented as feet.
Example: 5' 3 1/2" is 5.29167'

By the way, the formula (that you know) is "plus", not "times" ....
a^2 plus b^2 = c^2 (the square of the hypotenuse is the SUM of the squares of the two other sides)

Thanks for using FixYa!

-Gort.

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### How do i find area of a rectangle that has 1 straight side and the other is a triangle its irregular plz keep it simple / -------------I /-------------I

You shape is a rectangle and a right angled triangle. You need to divide it into the rectangle and the right angled triangle and add the areas.
Area of a rectangle is length * width

Then just add the two together.

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