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zhane2015
What are the values of a and b? a. a=400/21 ,b=580/21 b. a=400/21 ,b=20/21 c. a= 580/21 ,b=29/21 d. a=20/21 ,b=580/21
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You have 3 triangles: the big one, and the two smaller ones. All three are similar. You can set up ratios of corresponding sides. can you set up a ratio between 2 legs of the small triangle on the left with 2 legs of the small triangle on the right (including leg a, because you want to solve for a) ??