I have to find the area of a triangle.
The base is 22
The height is 11 square root 3... for this, it was 19.052... I rounded that to just 19. Was this okay???
I then get 418, divided by 2, and got 209 as the area.
Was it accurate that I rounded that number?
2 answers
Without rounding, I got 209.578, which is closer to 210.
why do all that?
area=1/2 b h
= 1/2 *22*11sqrt3
= 11^2*sqrt3=121sqr3== 209.578148
but still, that is an estimated number. The exact area is 121*sqrt3, and I would leave it at that.
area=1/2 b h
= 1/2 *22*11sqrt3
= 11^2*sqrt3=121sqr3== 209.578148
but still, that is an estimated number. The exact area is 121*sqrt3, and I would leave it at that.
1 answer