Respuesta :

The area is 60m squared.

The formula for a triangle is base times height, divided by 2. Base times height in this case is 10m x 12m, which is 120m. 120m divided by 2 is 60m squared. (It is squared because it is not just a length, but an area of a flat shape.)
Take 1/2 times it's base, times it's height. You should then have the answer! I hope I helped! :D