Answer:
hypoténuse = 15 in
b ² = 15² - 9²
b ² = 144
b = √144 = 12
Perimeter = 15 + 9 + 12 = 36 inches
Step-by-step explanation:
2 × 3 × 7
12-12
hope this helps tell me if it's right
(2×1+2)+(2×2+2)+(2×3+2)+(2×4+2)
=28
