Answer:
![m=3(1)/(3)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/81453641u6vtn277gz2qe0clnsb4r8vyry.png)
Explanation:
Given,
△ART∼△EFG
And also given that EG = GF
We have to find the measure of 'm'.
Solution,
Since △ART∼△EFG
So according to the property of similarity, which states that;
"If two triangles are similar then the ratio of corresponding sides are equal".
![(AR)/(EF)=(TR)/(GF)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/hgmml75x2iy1mt0sa0zc9luaqxgp72hqqa.png)
And EG = GF,
So we can say that;
![(AR)/(EF)=(TR)/(EG)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/fva8dzgl7bd0nk98pwcimm7i3qtwvc1onb.png)
Now putting the given values, we get;
![(12)/(5)=(8)/(m)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/ye12gv6fkjdipwb9ktieamrjrghn9u8uzy.png)
On using cross multiplication method, we get;
![12m=5*8\\\\m=(5*8)/(12)=(10)/(3)=3(1)/(3)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/y1mrurdz5lcwdb9xbf6tybx1q906qu0zm6.png)
Hence the value of 'm' is
.