Lesson 3.5.4 Part 1 Similar Shapes

Check angles first, does 180-70 gives you 120???

angles are ok here, get the ratios

get the ratios

Don't forget to use Math, enter, enter SMALL OVER BIG

small/big please use 18 and 30

small over big

small over big

CROSS MULTIPLY FROM THIS TILL THE END (x goes with 30, x/30)