Question

Please help thank you.

Answer 1

Question 1:

Add all the ratio numbers.

2+6+7=15

Now, divide that from 45, which is the given perimeter

45/15=3

Now, multiply the whole ratio by 3.

6:18:21

The shortest side is 6 inches.

Question 2:

Add all the ratio components.

17+16+12=45

Divide that by 180, the total degrees in a triangle.

180/45=4

Multiply that with 17 (largest ratio component).

You get 68, which is your answer.

Question 3:

(2x+7)/(3x-4) = 11/2

This proportion is quite simple and can be solved by setting the numerator equal to the numerator and the denominator equal to the denominator.

2x+7=11

3x-4=2

If you solve both of these, the value of x is 2.

That's your answer.

(Note: this is only a special case where you can do this)

Hope this helps! :)