a right angled triangle has the largest side as 13cm and one of the sides containing the right angle as 12cm. Its area is cm^2 is
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Let the right angled triangle be ABC.
Let AC be the the largest side ie. the hypotenuse.
Let BC be the base.
Let AB be the perpendicular/the height of the triangle.
H^2= B^2+ P^2
=13cm^2 =B^2+ 12cm^2
=B^2 = 13cm^2 - 12cm^2
=B^2 = 169cm - 144cm
=B^2 = 25cm
=B = sq. root of 25cm
=B = 5cm
Height of the triangle is 5cm.
Area of the triangle =1/2×Base×Height
=1/2×5×12cm
=1/2×60cm
= 60/2cm
=30cm^2
Let AC be the the largest side ie. the hypotenuse.
Let BC be the base.
Let AB be the perpendicular/the height of the triangle.
H^2= B^2+ P^2
=13cm^2 =B^2+ 12cm^2
=B^2 = 13cm^2 - 12cm^2
=B^2 = 169cm - 144cm
=B^2 = 25cm
=B = sq. root of 25cm
=B = 5cm
Height of the triangle is 5cm.
Area of the triangle =1/2×Base×Height
=1/2×5×12cm
=1/2×60cm
= 60/2cm
=30cm^2
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