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Learn how to calculate the perimeter and area of squares, rectangles, and parallelograms with these helpful geometric formulas.
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Fratianni - VV North Geometric Formulas
PERIMETER OF A SQUARE S = 5 P= 4s P= 4(5) P= 20 Fratianni - VV North
Fratianni - VV North AREA OF A SQUARE A=s 2
Area of a Square A=S A= 3 in. x 3 in. A= 9 sq. in. 3 in. 3 in. 2 Fratianni - VV North
Perimeter of a Square P=4s P=4(3 in.) P=12 in. 3 in. Fratianni - VV North 3 in.
Fratianni - VV North PERIMETER OF A RECTANGLE P= 2l + 2w
Fratianni - VV North AREA OF A RECTANGLE A= lw
Area of a Rectangle A=lw A=3 in.(2 in.) A=6sq. in. Fratianni - VV North 3 in. 2 in.
Fratianni - VV North Perimeter of a Rectangle P=2l+2w P=2(3 in.) + 2 (2in.) P=6 in. + 4 in. P=10 in. 3 in. 2 in.
Fratianni - VV North PERIMETER OF A PARALLELOGRAM P=2b+2s s b
AREA OF A PARALLELOGRAM Fratianni - VV North A=bh h b
Area of a Parallelogram A=bh A= 12 in.(6 in.) A= 72 sq. in. Fratianni - VV North 9 in. 6 in. 12 in.
Perimeter of a Parallelogram P=2b+2s P=2(12 in.) + 2(9in.) P= 24 in. + 18 in. P= 42 in. Fratianni - VV North 9 in. 6 in. 12 in.
PERIMETER OF A TRIANGLE Fratianni - VV North P=s + s + s 1 2 3 Side 2 Side 3 Side 1
AREA OF A TRIANGLE A=1/2bh Fratianni - VV North h b
Area of a Triangle A= 1/2bh A=1/2(6cm x 8cm) A= ½(48cm) A= 24 sq. cm. 10cm 8cm Fratianni - VV North 6cm
Perimeter of a Triangle P=s + s + s 10cm 8cm 1 2 3 1 Fratianni - VV North P=8cm+10cm+6cm P= 24 cm 6cm