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The area of a right-angle triangle is half of the area of a rectangle 8cm x 4cm. Find the rectangle area and divide by half to find the area of the right-angle triangle.

Therefore: 8 x 4 / 2 = 16cm2

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The above answer assumes that the two given lengths are the shorter legs of the triangle. It is, however, possible that these are the hypotenuse and one leg. In that case, the second leg is 4*sqrt(2) cm and the area of the triangle is

4 * 4*sqrt(2) / 2 = 8*sqrt(2) = 11.31 cm2.

Q: What is the area of a right triangle that is 4cm by 8cm?

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A rectangle that is 2cm by 4cm has an area of 8cm. It also has a perimeter of 12cm.

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

A triangle rectangle : S=bxh/2 b=8cm / h=4cm divided by two= 16cm2 A Square = 2 cm each side = 16 cm2

The area of triangle is : 24.0

The area of triangle is : 44.0

Related questions

It depends on the length of the third side.

A rectangle that is 2cm by 4cm has an area of 8cm. It also has a perimeter of 12cm.

The area of rectangle is : 32.0

The area of the triangle with these sides is found by Heron's formula, which states that: semiperimeter = (a + b + c) / 2 Area = √(s(s - a)(s - b)(s - c)) Then: semiperimeter = (6 + 8 + 4) / 2 cm = 9 cm Area = √(9(9 - 8)(9 - 6)(9 - 4)) cm² ≈ 11.6 cm²

60 cm2

The area of triangle is : 24.0

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

A triangle rectangle : S=bxh/2 b=8cm / h=4cm divided by two= 16cm2 A Square = 2 cm each side = 16 cm2

The area of triangle is : 24.0

=48

A triangle with side a: 11, side b: 8, and side c: 7 cm has an area of 27.93cm2

The area of triangle is : 44.0