4
Zia makes and sells candles.
She wants to make candles in the shape of a triangular prism.
Zia has this sketch of the triangular face and the candle.
●
10 cm
●
cross
section
Zia will melt wax to make the candles.
She knows that
8cm
be
sew
each 1 kg of solid wax makes 1.2 litres of melted wax
1 litre = 1000 cm³
the volume of a prism = area of cross section x height
6 cm
Zia has a 5 kg bag of solid wax.
She thinks that she can make at least 20 candles with this bag of solid wax.