C:\Documents And Settings\Michael Taylor\Desktop\Formula

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Page 1: C:\Documents And Settings\Michael Taylor\Desktop\Formula

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Page 2: C:\Documents And Settings\Michael Taylor\Desktop\Formula

Formula

Which colour has the larger area?

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Which colour has the larger area?

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Which colour has the larger area?

Area of a circle is A

A = π r²

π = 3.14

r is radius

The red areas can be seen as four half circles which can make two circles

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Formula

Which colour has the larger area?

Area of a circle isπ r²π = 3.14r is radius

r

The red areas can be seen as four half circles which can make two circles

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Formula

Which colour has the larger area?

Area of a circle isπ r²π = 3.14r is radius

r

3.14 x (r x r) or the radius multiplied by the radius then multiply by 3.14

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Which colour has the larger area?

Area of a circle isπ r²π = 3.14r is radius

r

3.14 x (r x r) or the radius multiplied by the radius then multiply by 3.14

1

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Formula

Which colour has the larger area?

Area of a circle isπ r²π = 3.14r is radius

r

3.14 x (3 x 3) or 3 multiplied by 3 = 9 then multiply by 3.14 =

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Which colour has the larger area?

Area of a circle isπ r²π = 3.14r is radius

r

3.14 x (3 x 3) or 3 multiplied by 3 = 9 then multiply by 3.14 = 28.26

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Which colour has the larger area?

Area of a circle isπ r²π = 3.14r is radius

r

3.14 x (r x r) or the radius multiplied by the radius then multiply by 3.14

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Which colour has the larger area?

Area of a circle isπ r²π = 3.14r is radius

r

3.14 x (2 x 2) or 2 multiplied by 2 then multiply by 3.14 =

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Which colour has the larger area?

Area of a circle isπ r²π = 3.14r is radius

r

3.14 x (2 x 2) or 2 multiplied by 2 then multiply by 3.14 =12.56

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Area (square) = 9 x 9 = 81;

Area (red) = 28.26 + 12.56 = 40.82;

Area (yellow) = 81 - 40.82 = 40.18.

Thus, Area (red) > Area (yellow).

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A right angled triangle has sides of 3 cm and 4 cm find the length of the Hypotenuse

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A right angled triangle has sides of 3 cm and 4 cm find the length of the Hypotenuse(the longest side)

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3 cm

4 cm

?

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3 cm

4 cm

C

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3 cm

4 cm

C

A

B

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3 cm

4 cm

C

A

B

A² + B² = C²

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3 cm

4 cm

C

A

B

A² + B² = C²

(A x A) + (B x B) = (C x C)

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3 cm

4 cm

C

A

B

A² + B² = C²

(A x A) + (B x B) = (C x C)

A multiplied by A B multiplied by B C multiplied by CAdded to Equals

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3 cm

4 cm

C

A

B

A² + B² = C²

(A x A) + (B x B) = (C x C)

A multiplied by A B multiplied by B C multiplied by CAdded to Equals

(3 x 3) + (4 x 4) = (C x C)

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3 cm

4 cm

C

A

B

A² + B² = C²

(A x A) + (B x B) = (C x C)

A multiplied by A B multiplied by B C multiplied by CAdded to Equals

9 + 16 = (C x C)

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3 cm

4 cm

C

A

B

9 + 16 = (C x C)

25 = C x C

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3 cm

4 cm

C

A

B

25 = C x C

25 ÷ c = c

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3 cm

4 cm

C

A

B

25 = C x C

25 ÷ c = c 25 = C

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3 cm

4 cm

C

A

B

25 = C x C

25 ÷ c = c 25 = C

C = 5

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3 cm

4 cm

C

A

B

25 = C x C

25 ÷ c = c 25 = C

C = 5

5 x 5 = 25

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