Answer:
450
Step-by-step explanation:
If the perimeter is 90 inches then each side must equal 30 inches. To find the area of a triangle you mulptiply the base by the height and divide by 2. The base is 30 and the height is 30. 30*30=900. 900/2=450.
Answer:
width = 8 feet and length = 29 feet
Step-by-step explanation:
perimeter of a rectangle P = 2(L + W)
width W = x
length L = 3x + 5
P = 74 feet
74 = 2(3x + 5 + x)
37 = 3x + 5 + x
37 = 4x + 5
4x = 37 -5
4x = 32
x = 8
W = 8 feet
Answer:
C is correct
Step-by-step explanation: please let me know if it was rong
Answer:
2cents
Step-by-step explanation:
40/20=2
If cube volume = 125, length of 1 side = cube root of 125 =5 inches
Surface area of a cube = surface area of each face * 6
each face is 5 inches by 5 inches = 25 square inches per face.
TOTAL AREA = 25 * 6 = 150 square inches