Question

If DZ = 6, ZR = 2, and EZ= 8, what is IR?

Answer 1

8/6*(8)=32/3 or 10.66666.... or 10.7 rounded

Explanation:

They are similar triangles

so we cam compare the size of the big triangle DIR to the smaller triangle DEZ

More specifically

EZ:DZ=IR:DR

8:6=IR:(6+2)

4:3=IR:8

the to solve for IR

we multiply by 8 each side

4/3*8=32/3