Answer:
9 units
Step-by-step explanation:
Using Pythagorean Theorem
12^2 + x^2 = 15^2
144 +x^2 = 225
x^2 = 81
x = 9
Congruent
SSS (because of Pythagoras)
Thanks I’ll get to use this to help me out
Answer:
331
Step-by-step explanation:
Add 74 + 46 + 57 = 177
Add 9 + 36 = 45
Add 45 + 46 = 91
Answer:
Mary and Duke have 3,172 stamps altogether
1,364 + 1,808 = 3,172
