Answer:
A. Perimeter is 6a + 32b
Area is 33ab + 55b²
B. Perimeter is 16b + 40c
Area is 16b² + 80bc + 100c²
C. Perimeter is 20a + 12b
Area is 25a² + 30ab + 9b²
D. Perimeter is 20m + 6n
Area is 16m² + 24mn
Explanation:
Perimeter of a rectangle is 2(L+W)
Area of rectangle is LxW
Perimeter of a square is 4s
Area of square is s²
A.
P = 2(3a + 5b + 11b)
= 2(3a + 16b
P = 6a + 32b
A=11b(3a+5b)
A=33ab + 55b²
B.
P=4(4b+10c)
P= 16b + 60c
A=(4b+10)²
A=16b² + 80bc + 100c²
C.
P= 4(5a+3b)
P= 20a+12b
A=(5a+3b)²
A=25a² + 30ab + 9b²
D.
P=2(2m+3n+8m)
=2(10m+3n)
P=20m+6n
A=8m(2m+3n)
A= 16m² + 24mn