The factors of 180 are
(1, 180), (2, 90), (3, 60), (4, 45), (5, 36), (6, 30), (9, 20), (10, 18), (12, 15).
The GCD of 6 is the largest positive integer that divides 180.
Therefore the required factors of 180 are a=6 and b=30 or vice versa.
a + b = 6 +30 = 36
Answer: 36
P= perimeter = 62 = 15+10+13+x = 38+x
then x=62-38= 24
A= 1/2 * (10+24) *h
204 = 1/2 * 34 * h
204*2 * 1/34 = h
12= h
then h= 12
Answer:
10cm2
Step-by-step explanation:
Kelly made a mistake by not following PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction. She added 4 and 3 before multiplying it by two when the multiplication comes before the addition or subtraction. Brook is correct.
