Recognised as 2D shape
Right triangle with legs 4.5 and 20
- Right triangle
- hypotenuse 20.5
A right-angled triangle with legs of 4.5 and 20 has a hypotenuse of 20.5 by Pythagoras' theorem, an area of 45 square units, and acute angles of 12.68° and 77.32°.
Measurements
Leg a4.5
Leg b20
Hypotenuse20.5√(a² + b²)
Area45ab/2
Perimeter45
Angle opposite a12.680383°
Angle opposite b77.319617°
Pythagorean tripleNo, the hypotenuse is irrational
Inradius2
Circumradius10.25half the hypotenuse
Formulas used
Hypotenusec = √(a² + b²)
AreaA = ab/2
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