Question

3. A scrap of fabric has the dimensionsshown. What is the area of the scrapof fabric?: 12 m15 m

Answer 1

SOLUTION

From the image, the scrap of fabric has the shape of a triangle,

with base 15m and height 12m

Area of a triangle is calculated as

$\text{Area of triangle = }\frac{1}{2}\times base\times height$

So, this becomes

$\begin{gathered} \text{Area of triangle = }\frac{1}{2}\times base\times height \\ \text{Area of triangle = }\frac{1}{2}\times15\times12 \\ 2\text{ into 12, we have 6, so this becomes } \\ =15\times6 \\ =90m^2 \end{gathered}$

Hence, the answer is 90 square-meters