Determine the value of a. answers: A) 10 B) 6 C) 7 D) 70

C

Step-by-step explanation:

Since triangles TUS and QRS are similar, if TUS is isosceles then so is QRS. This means that all corresponding proportions are at a constant ratio. So if TS=US, QT=RU and therefore a=7. Hope this helps!

a =7

Step-by-step explanation:

The triangles are similar so we can use ratios

10           10

 =

10+a      10+7

Since the numerators are the same, the denominators have to be the same

10+a = 10+7

a = 7

the dimensions are:

step-by-step explanation:

we want to find the dimensions of a rectangular box with volume of

we factor to obtain;

we rewrite the rightmost factor to obtain;

recall that:

we apply difference of two squares formula to obtain;

hence the dimensions are