Answer:
Width = 4 m
Length = 7 m
Step-by-step explanation:
given:
perimeter of a rectangle = 22m
L = 3 + W
perimeter = 2L + 2W
perimeter = 2 (3 + W) + 2W
22 = 6 + 2W + 2W
22 - 6 = 4W
W = 16 / 4
W = 4 m
L = 3 + 4
L = 7 m
check:
22 = 2(7) + 2(4)
22 = 14 + 8
22 = 22 ---- OK
9: 14
Both terms are divisible by 4.
Answer: 168cm^2
lets split this into two shapes:
a rectangle and a triangle
Formulas:
rect: b * h
Tri: (b*h)/2
Solve:
12 * 10 = 120
(12*8)/2 = 48
120 + 48 =
168cm^2
x = 3
Steps:
There you go!
Answer to question:
4.2
