Answer: 11,880
Step-by-step explanation:
nPr = n!/(n-r)!
12P4 = 12!/(12 - 4)!
12P4 = 12!/8!
9 * 10 * 11 * 12
(In case anyone else gotten confused like I did at first)
Answer:
<u>72 cm²</u>
Area of a ∆ = 1/2 × b × h
b = 12 cm
h = 12 cm
Area = 1/2 × 12 × 12
= 1/2 × 144
= <u>72 cm²</u>
A
