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No because the given dimensions don't comply with Pythagoras' theorem for a right angle triangle.

Q: Is 3cm 4cm 6cm a right triangle?

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Scalene

A=1/2(b)(h). So A=1/2(6cm)(4cm). A=12cm^2, or 12 squared centimeters.

A scalene triangle is a triangle that does not have a right angle in it (i.e. not a right angled triangle) and does not have two (or three) sides with the same length (i.e. not an isosceles triangle or an equilateral triangle). An example is a triangle with sides of length 4cm, 5cm and 6cm.

1/2*6*4 = 12 square cm

It does not have a circumference but its perimeter is: 4+6+8 = 18 cm

Related questions

Draw a right angled triangle with legs of 4cm and 6cm

16 cm

22cm

Scalene

It is: 6*3*4 = 72 cubic cm

A=1/2(b)(h). So A=1/2(6cm)(4cm). A=12cm^2, or 12 squared centimeters.

1cm + 6cm, 2cm +5cm, 3cm + 4cm all the partners that add up to 7cm.

A scalene triangle is a triangle that does not have a right angle in it (i.e. not a right angled triangle) and does not have two (or three) sides with the same length (i.e. not an isosceles triangle or an equilateral triangle). An example is a triangle with sides of length 4cm, 5cm and 6cm.

1/2*6*4 = 12 square cm

It does not have a circumference but its perimeter is: 4+6+8 = 18 cm

Using Pythagoras' theorem for a right angle triangle then the other leg works out as 3 times the square root of 3 or about 5.196 cm rounded to three decimal places

3cm x 6cm x 1cm = 18 cm3