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CHAPTER Surface Area - School District #35

CHAPTER Surface Area - School District #35

CHAPTER Surface Area - School District #35

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Name: _____________________________________________________<br />

Date: ______________<br />

1. Jason was asked to find the surface area of a cylinder.<br />

He found the area of the circle and the circumference of the circle.<br />

Why does he need to know the circumference of the circle<br />

2. Draw a net for this cylinder.<br />

3. Estimate the surface area of the cylinder.<br />

Then, calculate the surface area to the nearest tenth of a square<br />

centimetre (1 decimal place).<br />

d = 7 cm<br />

30 cm<br />

Estimate area of circle:<br />

A = π × r 2<br />

← Formula →<br />

2<br />

≈ 3 ×<br />

← Substitute →<br />

≈ cm 2 ← Solve →<br />

Estimate area of 2 circles:<br />

2 × =<br />

Calculate area of circle:<br />

<strong>Area</strong> = π × r 2<br />

=<br />

Calculate area of 2 circles:<br />

Estimate area of rectangle:<br />

A = l×<br />

w<br />

A = ( π × d)<br />

× w<br />

≈ 3 × ×<br />

≈<br />

Estimate surface area:<br />

A ≈ +<br />

≈<br />

262 MHR ● Chapter 5: <strong>Surface</strong> <strong>Area</strong><br />

← Formula →<br />

← Substitute →<br />

← Solve →<br />

Calculate area of rectangle:<br />

Calculate surface area:<br />

A = +<br />

=

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