Question

Find the missing variable.
9) b=

Answer 1

The value of b is 6 cm.

Since the two triangles are similar, we can write the following proportion:

PQ/PS = QR/ST

Substituting in the given values, we get:

9/6 = 7/4

Solving for b, we get:

b = (9/6) * 4 = 6 cm

Therefore, the missing variable is b=6.