Question

In given figures the two triangles are similar $\Delta ABC\sim \Delta DEF$ if ED=7 what is $m\angle A$

• A. ${80}^o$
• B. ${30}^o$
• C. ${70}^o$
• D. ${60}^o$

Answer 1

The correct option is C ${70}^o$

The triangles are similar, corresponding angles are congruent and corresponding sides are proportional.

$\angle A$ corresponds to $\angle E$.

Since $m\angle E$ $={70}^o$, $m\angle A$ $={70}^o$