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I assume the question refers to a right angled triangle, since a rigt angle, by itself, cannot have an area.
There are three possible answers - depending upon which of the sides are "a" and "b".
Case 1: The right angle is between the sides "a" and "b". The area is 0.5*a*b
Case 2: The side "a" is opposite the right angle (the hypotenuse). Then the third side, c is sqrt(a2-b2). The area is 0.5*b*c
Case 3: The side "b" is opposite the right angle (the hypotenuse). Then the third side, c is sqrt(b2-a2). The area is 0.5*a*c
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What is the meaning of Right Angle?
-- an angle that measures 90 degrees -- an angle whose sides are mutually perpendicular
Can a circle have right angels in it?
no. if it did it wouldent be a circle a circle can circumscribe a right angle a right angle whose vertex lies on a circle has sides that intersect the circle's diameter.
What is an incribed angle in circle?
An inscribed angle is an angle whose vertex is on the circle and whose sides are chords.
What is the angle whose vertex is on the circle whose sides include chords?
central angle
An angle whose sides make a ray is called?
an acute angle
