To find the area of a triangle, we typically need the base and the height or we can use the lengths of all three sides if we know them. However, if you only provide two sides (18 cm and 12 cm) without specifying how they relate (such as whether they form the base and height or are the lengths of two sides with an included angle), we can't definitively calculate the area.
If we assume that 18 cm and 12 cm are the base and height of the triangle, we can use the formula:
\[ \text{Area} = \frac{1}{2} \times \text{base} \times \text{height} \]
Substituting in the values:
\[ \text{Area} = \frac{1}{2} \times 18 , \text{cm} \times 12 , \text{cm} = \frac{1}{2} \times 216 , \text{cm}^2 = 108 , \text{cm}^2 \]
So, if 18 cm is the base and 12 cm is the height, the area of the triangle is \( 108 , \text{cm}^2 \).
If the two sides are not the base and height or if you need a different arrangement (like the formula for an area calculated using different sides with an included angle), please provide more details!
1 answer