## UmmmHELP Group Title Explain why the triangles are similar, then find the value of x. Given: The two triangles' bases are parallel. one year ago one year ago

1. UmmmHELP

2. campbell_st

ok the similar shapes are equiangular |dw:1363893905762:dw| the angles marked A are equal... corresponding angles in parallel lines the angles marked B are equal ... corresponding angles in parallel lines The angle marked C is common to both triangles... the side length of the larger triangle is 9 so compare the ratios of corresponding sides $\frac{9}{6} = \frac{x}{7}$ cross multiplign gives 63 = 6x solve for x...

3. UmmmHELP

10 1/2

4. UmmmHELP

@campbell_st is it AA or SAS?

5. campbell_st

its AA... equi-angular..

6. UmmmHELP

Okay thank you!