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Laabri

Math Formative Assessment 2 criterion A

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Last updated over 5 years ago
14 Nsɛmmisa
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1.

What is the area of this shape?

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2.

The perimeter of the figure is ..........................

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3.

All the faces of the .......................... are equal in sides.

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4.

In any rectangle ..................

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5.

The rule used to calculate the area of rectangle is ......................

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6.

Area is measured in ..............

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7.

If you want to calculate the surface area of any 3d shape, you will ...............................

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8.

If you have a constant perimeter, the shape that will give you the greatest area is a ................

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9.

The following net is a net of a ..................

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10.

The area of the following figure is ................... cm squared (units are in cm)

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11.

Using the following formula: E = 0.15 x A x H

Calculate the energy output of solar panel that is 1 meter squared and used in cairo where the annual average solar energy is 1760 kwh/m square

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12.

In an attempt to reduce their air conditioning usage, Lavinia’s family decided to put up a triangular shade outside, with seating underneath. These shades come in a variety of sizes and shapes, which cover different areas.

a) One shade is in the shape of a right-angled triangle, with the two legs of the triangle having lengths of 4m and 5m respectively. What is the area of shade produced when the sun is directly overhead?

b) Another shade is an equilateral triangle, with side lengths of 5m and a perpendicular height of 4.33m. What area of shade is produced when the sun is directly overhead?

c) Which one will shade more?

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13.

Calculate the surface area of the figure.

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14.

Find the area of the orange figure. All the dimensions are measures in cm.