Answer:
9 cm
Step-by-step explanation:
Volume of a square pyramid, V = 1/3*(base area)*h
Where, base area = l*l = l^2
h = height
243 = 1/3(l*2)*h
l = h (base edge length = height)
243 = 1/3(l*2)*l
243 = 1/3(l^3)
729 = l^3
l = (729)^1/3
l = 9 cm
l = h = 9 cm
h = 9 cm
Answer:
1. 7.1
2. 11.5
3. 24.2
Step-by-step explanation:
you use P.E.M.D.A.S. for all the equations.
so you do thr multiplication and then the addition
1. 2(1.8)+3.5= 3.6+3.5= 7.1
2. 2(4)+3.5= 8+3.5=11.5
3.2(6.9)+3.5= 13.8+3.5= 24.2
hope this helps
Answer:
200 in²
Step-by-step explanation:
The face consists of two 10 in squares. Each of those will have an area of ...
(10 in)² = 100 in²
so the two of them together will have an area of ...
2 × 100 in² = 200 in²
The product of 9 and 12 is 108