Area & Volume

2D-Geometric shape

3D-Geometric shape

Perimeterof 2D shape

• a path that surrounds a two-dimensional shape.

• it can be thought of as the length of the outline of a shape.

• Pythagorean Theorem.

• A² + B² = C².

Length units

Area

Area

Area unit

Square units

• amount of squares it would take to cover the figure completely.

• i.e.>>>– a rectangle is cm and the

other side is cm.

we get cm-squared (cmXcm)

– Circle with r cm radius

A = pi r^2 (cmXcm)

Square Meter

Square Millimeter

Square Centimeter

Square Kilometer

Area unit conversion

Rai-Ngan-Tarangwa

• 1 Rai = 4 Ngan = 400 Tarang Wa = 1600 Sq.m

• 1 Ngan = 100 Tarang Wa = 1/4 Rai = 400 Sq.m

• 1 Tarang Wa = 1/100 Ngan = 1/400 Rai = 4 Sq.m

Convert square foot to square inch..?

• 1 square meter = 10,000 square centimeter

• 1 square kilometre = 1,000,000 square meter

• 1 square foot = 144 square inch

• 1 rai = 4 ngan

• 1 ngan = 100 tarang wa

• 1 rai = 400 tarangwa

• 1 tarangwa = 4 tarang meter

• 1 tarang wa= 4 square meter

Surface area

Total surface area

Volume

• quantity of three-dimensional space enclosed by some closed boundary

Volume unit conversion

• 1 ml = 1 cm3

• 1 m3 = 1,000,000 cm3

• 1 L = 1,000 cm3 = 1,000 ml

• 1 m3= 1,000 L

• 1 cup = 8 ounce

• 1 teaspoon = 5 cm3

• 1 cup = 240 cm3

Fill me up!

Conclusion

Area

Volume