Answer:
Complementary
Step-by-step explanation:
Because that angle is 90°
Answer:
3.6 cm²
Step-by-step explanation:
18 mm = 1.8 cm
A = 2cm×1.8cm = 3.6 cm²
Answer:
48 inches
Step-by-step explanation:
12 in=1
24 in = 2
36 in = 3
48 in = 4
Add 12 everytime
8 + 2(10 - r) = 8 + 20 - 2r = 28 - 2r