Math- Proportions/Ratios Flashcards
1
Q
When should you set up a proportion
A
When there are two things (usually fractions) that are equal. Cross multiply and solve for the variable.
2
Q
How would you find what the area equals if the height is now three times the original height.
A
You would solve this by first recognizing what this would look like. The area of a triangle equals 1/2(b)(h). The new area would equal 1/2(b)(3h). Try to get the number outside the equation so it looks like 3(1/2 x b x h). Then we know that the new area is just three times the old area.
