Question

Can someone help me with part b on this question please?

Answer 1

9514 1404 393

Answer:

12.0 cm

Explanation:

The Pythagorean theorem applies:

(12 cm)² +b² = (17 cm)²

b² = (289 -144) cm² = 145 cm²

b = √145 cm ≈ 12.04 cm

b ≈ 12.0 cm . . . . rounded to 1 decimal place