Area

Listen to this song for a reminder about the formulae for the circumference and area of a circle. media type="youtube" key="-z4SUypJZxo?rel=0" height="360" width="480" align="center" Now attempt the questions below. 1. Calculate the area of squares which have the following sides: a) 7 cm  b) 12.7 cm   2. Calculate the area of circles which have the following radius and diameter, correct to 2 decimal places: a) //r// = 6 cm  b) //d// = 7 m   3. A square of sides 100m has an area of 1 hectare (ha). How many square metres does it take to make 1ha? 4. A rectangle has a length of 700m and a width of 300m. What is the area of this rectangle in hectares? 5. Calculate the areas of the following triangles:  6. Calculate the areas of the following trapezia:  Try the activity from the website below. Area & Perimeter <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">Now continue with the following questions. <span style="color: #000080; font-family: 'Comic Sans MS',cursive; font-size: 150%;">7. Calculate the areas of the following parallelograms: <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;"> <span style="color: #008000; font-family: 'Comic Sans MS',cursive; font-size: 150%;">8. Calculate the areas of the following rhombuses: <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;"> <span style="color: #000080; font-family: 'Comic Sans MS',cursive; font-size: 150%;">9. Calculate the areas of the following quadrilaterals:
 * __<span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">Area __** <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 150%; text-align: center;">Open this file and save it to your laptop for the notes on today's lesson.