Perimeter, Area, and Volume 3102.4.1 Using algebraic expressions solve for measures in geometric figures as well as for perimeter, area, and volume.

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Presentation transcript:

Perimeter, Area, and Volume Using algebraic expressions solve for measures in geometric figures as well as for perimeter, area, and volume.

PERIMETER To find the perimeter of a rectangle or square use the appropriate formula or just add up the length of the sides! rectanglesquare P= 2w + 2l P=4s

Find the perimeter of the rectangle P = 2w+2l P = 2(5)+2(8) P = P =

Find the perimeter of the irregular figure. Just add up all the sides P= P=24

Formulas for FINDING AREA Circle Triangle Rectangle Parallelogram

Find the area of a circle 6

Find the area of a Triangle 7 10 A= b h A= (10)(7) A= 35

Find the area of a Rectangle A= lw A= (25)(7) A=

Finding the area of a parallelogram A= bh A=(7)(4) A=

FINDING VOLUME V= lwh V=(3)(6)(4) V=

Finding the volume of a cylinder 5 12 V=

Use Algebraic Expressions A = lw A = (x+5)(2x) A = 2x 2 +10x x + 5 2x Find the area first! Now find the perimeter! P = 2l + 2w P = 2(x+5) + 2(2x) P = 2x x P = 6x+10