Answer:
I think the density is 4cm.
Hope that helps you.
Step-by-step explanation:
How to solve: 20^2+5^2=x^2, then you take the square root, therefore x=20.62
Answer:
(1, -4)
Step-by-step explanation:
Answer:
28 cm
Step-by-step explanation:
If the shape is a square, all the sides are equal. To find the area you multiply the length by the width. Since the area is 49 centimeters, find the square root of 49 to find the length of the length and the height of the square, which is 7. To find the perimeter, you add the lengths of all the sides of the square. 7+7+7+7=28.
Answer:
h = 7.333....
Step-by-step explanation:
Formula is A = 1/2h(b1+b2)
Area 77 determine the height
77=1/2h(14+8)
77 = 1/2h(22)h
77/10.5 = 10.5h/1.5
solve for h = 7.333....
