Question about Texas Instruments TI-83 Plus Calculator

# Trying to find the hypotenuse of a trangle

I have both the height and the length of a triangle, the height equals 15 and the length equals 15 what will the hypotenuse equal and how do i type the equation in my calculator to find it out?

Posted by on

• Level 1:

An expert who has achieved level 1.

Mayor:

An expert whose answer got voted for 2 times.

• Contributor

A squared + B squared = C squared
15 squared + 15 squared = C Squared
225 + 225 = c squared
450 = c squared
the square root of 450 is 21.21320433

Posted on Apr 30, 2009

• Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Vice President:

An expert whose answer got voted for 100 times.

Sniper:

An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.

• Expert

The type of triangle you described is a 45-45-90. to find the hypotenuse, simply multiply 15 by the square root of 2

Posted on May 07, 2009

• Level 1:

An expert who has achieved level 1.

Mayor:

An expert whose answer got voted for 2 times.

• Contributor

(A) squared plus (B) squared equals (C) squared

A=15
B=15

C=square root of 450= 21.213203

Posted on Aug 01, 2008

• slshankle Aug 01, 2008

assuming of course that it is a right triangle otherwise you have to know some angles also.

×

## 1 Suggested Answer

Hi,
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

×

my-video-file.mp4

Complete. Click "Add" to insert your video.

×

## Related Questions:

### If the length of hypotenuse of a right angled triangle is 5cm, its area is 6 sqcm. then the length of the remaining sides are

The Pythagorean Theorem states for a right triangle
A squared + B squared = C squared
where C is the hypotenuse.

if the hypotenuse is 5cm, then the remaining sides have to be 3cm & 4cm

Also called the 3,4,5 right triangle.

Sep 11, 2017 | The Office Equipment & Supplies

### What is the length of a hypotonuse triangle with legs being 4 and 3

a^2 + b^2 = c^2
a squared + b squared = c squared, where c is the length of the hypotenuse, and a and b are the lengths of the other two sides in a right-angled triangle.

Mar 10, 2017 | Homework

### Formula to calculate hyportenuse

The formula to calculate the hypotenuse of a right angled triangle is a^2 + b^2 = c^2 or in words, a squared plus b squared is equal to c squared. The most common mistake is that students make the hypotenuse a squared or b squared. The hypotenuse has to be c squared. Thus, when figuring out the sides of a right-angled triangle, always make sure the hypotenuse is the longest side.

For example, a triangle with sides of length 3 and 4, calculate the hypotenuse. Let a be 3 and b be 4. 3^2 + 4^2 = c^2 or 9+16 = c^2, or 25 = c^2. Now take the square root of both sides and we get c = 5.

Feb 18, 2015 | Office Equipment & Supplies

### The length hypotenuse of a Right triangle length 19cm height 9cm

The square root of the sum of 19 squared and 9 squared or about 21.

Apr 23, 2014 | Computers & Internet

### Given a length of 30 cm on the x axis and a length of 10 cm on the y axis and a angle of 90 at the x/y axis intersection is there a short cut to calculate interior angles and hypot. of the triangle?

Yes, there is shortcut because this is right triangle, so you can use Pythagorean theorem (see picture).
1. Length of hypotenuse is square root of sum of squares of lengths of other two sides of triangle, which is equal to square root of 30^2+10^2=31.6 cm.
2. Sin(a)=longer cathetus/hypotenuse=0.949 so a=arcsin(0.949)=71.6 degrees
3. Finally b=90-a=18.4 degrees.

If this was helpful please rate 4 thumbs :)

Sep 05, 2011 | Texas Instruments TI-30XA Calculator

### Find the value of x in the 45-45-90 triangle. write your answer in racial form

in a 45-45-90 triangle, the lengths of the sides are in a ration, 1:1:√2, so if you have one side of the triangle, such as a leg, with the value in the ratio of 1, simply multiply that given number by √2 to get the hypotenuse, if you're instead given the hypotenuse, simply divide by √2 to get the answer for one of the legs. The legs of a 45-45-90 triangle are equal.
I hope this helps!

May 05, 2011 | Computers & Internet

### How to use Texas Instruments TI34II Calculator? Especially I want to now how to use sinus, cosinus, and tangen on it. In Indonesia we call it "sin, cos, tan" Need your help, thanks.

Sinus, cosinus, and tangens (Latin names) are the same as sine, cosine, and tangent (full English names), which are abbreviated to sin, cos, and tan. If you're asking how to use these functions, they deal with right triangles and finding the missing angles or side lengths of the triangle.

Always, sine equals opposite/hypotenuse, cosine equals adjacent/hypotenuse, and tangent equals opposite/adjacent.

Using this picture, the sine of angle A equals a/c, the tangent of angle B equals b/a, and the cosine of angle A equals b/c, and so on.

In a calculator, simply hit the desired function (sin, cos, or tan), then in parenthesis put the measure of the angle, and then use what you know about the triangle to find out the rest.

Mar 03, 2011 | Texas Instruments 30XIISTKT1L1A Calculator

### How much will be height from one point to other for 14.4 mts with

I am not exactly sure what the 14.4 m distance represents: The horizontal part or the inclined one.

A. If the 14.4m is the length of the horizontal leg, then the height is given by tan(3 deg)=h/14.4m or h=14.4m*tan(3 deg) =0.75467 m.

B. However if 14.4 m is the length of the inclined part (the hypotenuse) of the triangle, then the height is given by
sin(3 deg)= h/14.4m or h=14.4 m *sin(3 deg)= 0.75363 m

As you can see, the values are approximately equal, because for angles less than 10 deg, the sine and tangent are approximately equal.

I am no construction engineer, but it seems to me that a 3 deg pitch in not much of an inclination. Maybe you meant 30 degree pitch.

If that be the case, the calculations are performed the same way as above: Just substitute 30 deg for 3 deg.

May 08, 2010 | Casio FX-115ES Scientific Calculator

## Open Questions:

#### Related Topics:

945 people viewed this question

## Ask a Question

Usually answered in minutes!

Level 3 Expert

Level 2 Expert

Level 3 Expert