Question

find the area of the triangle formed by the points A(0,0), B(4,0) and C(0,9).​

Answer 1

Answer:

$Area\:of\:the\: triangle \:formed \:by\: the \:points \:(0,0),\:(x,0),\:(0,y) = \frac{1}{2}(x\:y)sq.\:units \\Area\:of\:the\: triangle \:formed \:by\: the \:points \:(0,0),\:(4,0),\:(0,9) = \frac{1}{2}(9\:4)sq.\:units\\=\:\frac{1}{2}\:* \:18\\=\: 9\:sq.\:units$

Hoe this answer helped you out , have a nice day