9. Area of a triangle is proportional to height. If the height increases by a factor of 4, then ...
The area will increase by a factor of 4. . . . . (2nd selection)
10. The base lengths and height are needed:
• 5 mm
• 8 mm
• 10 mm
Answer:
i think the 2nd one is correct .. i have not fluent in english to explain the answer.
There's an app called photomath that would be useful for these kinds of problems!
The answer is k= 2.5
Explanation: Rotating the shape will show that one side is 20:8. Divide these together and you get 2.5.
Hope this helps
Huh. Try be more specific and then I could help you out