Question

If these two shapes are similar, what is the measure of the missing length b?

Answer 1

Answer:

b = 54 cm

Step-by-step explanation:

We can use proportions if the shapes are similar

Take the same side lengths over each other.

81   cm            b cm

----------- = --------------

24  cm           16 cm

Using cross products

81 *16 = 24*b

Divide each side by 24

81*16/24 = 24b/24

54 =b