Q: How do you find the perimeter of a rectangle square or triangle?

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Square is a special case of a rectangle and the same formula may be used to find the perimeter

yes

Area of the triangle = 0.5*base*height = 0.5*10*15 = 75 square cm Area of the rectangle = base*height = 10*15 = 150 square cm

You cannot find the perimeter unless the rectangle is a regular rectangle (a square) in which case the perimeter is 4 times the square root of the area. With just the area the shape of the rectangle could be any number of shapes with different perimeter, for example, imagine 6 square units 1cm by 1cm arranged in a 1*6 configuration to give a long thin rectangle, the perimeter would be 6+6+1+1=14cm, the same 6 arranged in a 3*2 rectangle would have the same area, but a perimeter of 3+3+2+2=10cm, for this reason a rectangle's perimeter cannot be determined from the area alone.

The perimeter of the rectangle is 2•66+2•32=196196/4(sides of a square)=49 cm

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There is no reason for the perimeter of a triangle to have any relation to the perimeter of an unrelated rectangle!

Square is a special case of a rectangle and the same formula may be used to find the perimeter

no

yes

Area of the triangle = 0.5*base*height = 0.5*10*15 = 75 square cm Area of the rectangle = base*height = 10*15 = 150 square cm

I think so

It is the sum of their 4 sides

98 square feet

You cannot find the perimeter unless the rectangle is a regular rectangle (a square) in which case the perimeter is 4 times the square root of the area. With just the area the shape of the rectangle could be any number of shapes with different perimeter, for example, imagine 6 square units 1cm by 1cm arranged in a 1*6 configuration to give a long thin rectangle, the perimeter would be 6+6+1+1=14cm, the same 6 arranged in a 3*2 rectangle would have the same area, but a perimeter of 3+3+2+2=10cm, for this reason a rectangle's perimeter cannot be determined from the area alone.

The perimeter of the rectangle is 2•66+2•32=196196/4(sides of a square)=49 cm

Yes. But using P=4s is easier with a square.

Area of a triangle in square units = 0.5*base*height