Naming sides of a Right Angled Triangle

Intro

How to Identify

Hypotenuse

Opposite

Adjacent

Identify Sides in Triangles

Trigonometry

Trigonometry means “triangle” and “measurement”.

Adjacent

Opposit

e

x°x°

hypotenuse

Each side in a RAT is given a name according to its position

R ight

A ngle

T riangle

Hypotenuse

The Hypotenuse is the longest side in a Right Angle Triangle ( RAT ) .

hypotenuse

It is opposite the right angle

Hypotenuse

The Hypotenuse is the longest side in a Right Angle Triangle ( RAT ) .

hypotenuse

It is opposite the right angle

Opposite

The Opposite side is opposite the selected angle

opposite

Opposite

The Opposite side is opposite the selected angle

opposite

Opposite

The Opposite side is opposite the selected angle

opposite

Adjacent

Two angles are involved. The selected Angle

and the right Angle.

adjacent

The Adjacent side lies between the two

Angles

Adjacent

Two angles are involved. The selected Angle

and the right Angle.adjacent

The Adjacent side lies between the two

Angles

Adjacent

Two angles are involved. The selected Angle

and the right Angle.

adjacent

The Adjacent side lies between the two

Angles

0

1 2 3 4 5

6 7 8 9

C.

÷x

0

+

On

²

-

Ans

=

√(-)

sin cos tan

SHIFT

Opp Adj or Hyp

4.2

67.3

opp

Adj

hyp

OAH

OAH

OAH

OAH 8.4

5.6OAH

7.7OAHOAH

3.4

6.6

OAH

4.5

OAH

7.3

OAH5.8

OAH 6.1OAH

OAH2.2

5.7OAH

OAH

3.4

Reset

0

1 2 3 4 5

6 7 8 9

C.

÷x

0

+

On

²

-

Ans

=

√(-)

sin cos tan

SHIFT

Opp Adj or Hyp

opp

Adj

hypReset

OAH 8.4

7.7OAH

OAH

3.4

4.2

6

7.3

OAH

OAH

OAH

4.5

OAH

7.3

OAH

5.8OAH

6.1

OAH

OAH2.2

5.7

OAH

OAH

5.6

OAH

3.4

6.6

OAH