- #1
SonOfGod
- 8
- 0
This is supposed to be a simple question. However, I forgot a lot of the basics and rules I have to follow.
I tried to workout the height based on the area:
0.5 x 3 x h = 30
h = 20
But couldn't figure out the rest.
Then I thought about going by ratio (not from knowledge but out of desperation):
Ratio of sides: 3:1
Based on which, I assumed that the area of the triangles will follow the same ratio and therefore:
Area of big triangle : Area of small triangle = 3:1
We know that the bigger one is 30, so the smaller one has to be 10.
Answer: B.
I am correct according to the answer key. However, I just pulled that ratio thing out of my a*s. So I need someone who knows about these things to help me out so that I may "learn" instead of make stuff up.
I tried to workout the height based on the area:
0.5 x 3 x h = 30
h = 20
But couldn't figure out the rest.
Then I thought about going by ratio (not from knowledge but out of desperation):
Ratio of sides: 3:1
Based on which, I assumed that the area of the triangles will follow the same ratio and therefore:
Area of big triangle : Area of small triangle = 3:1
We know that the bigger one is 30, so the smaller one has to be 10.
Answer: B.
I am correct according to the answer key. However, I just pulled that ratio thing out of my a*s. So I need someone who knows about these things to help me out so that I may "learn" instead of make stuff up.