Grade 10 Measurement

The formula for the area of a circle is:

•  $\pi r^2\times h$  

•  $\pi r^2$  

•  $2\pi r$  

•  $2\pi rh$  

The formula for the volume of a rectangular prism is

• $\frac{1}{2}\times l\times b\times h$

• $l^3$

• $l\times b\times h$

• $2lb+2bh+2lh$

The formula for the surface area of a sphere is:

• $4\pi r^2$

• $\frac{4}{3}\pi r^2$

• $\frac{1}{3}\pi r^2$

• $\frac{1}{2}\pi r^2$

The following is a right triangular based pyramid

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A squared based pyramid is made up of the following shapes

• 1 square and 3 congruent triangles

• 1 square and 4 congruent triangles

• 2 squares and 4 congruent triangles

• 1 square and 3 congruent triangles

Which cube has a surface area of 150 units squared

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The perpendicular height of the following cones is:

• 144 m

• $\sqrt{194}$ m

• 12 m

• 18m

The formula for the surface area of a hemisphere is as follows:

•  $2\pi r^2$  

•  $3\pi r^2$  

•  $4\pi r^2$  

•  $5\pi r^2$  

Convert 120 cm into meters

• 1.2 m

• 12 m

• 0,12 m

• 1,02m

Select all of the formulae which are used to calculate VOLUME.

•  $\frac{4}{3}\pi r^3$  

•  $\pi r^2+\pi rs$  

•  $\pi r^2\times h$  

•  $s^2$  

•  $\frac{1}{3}\left(area\ of\ base\times\perp h\right)$