Answer:
Step-by-step explanation:
surface area=4 *x²+2 x²=6x²=6 ×5²=150 sq. in.
Answer:
The total surface area = 582 ft²
Step-by-step explanation:
To find the surface area of it count the number of faces at first
The figure has 8 faces each 2 are equal
1- Two faces with dimensions 4 ft and 15 ft ( base and shaded face)
2- Two faces with dimensions 9 ft and 4 ft
3- Two faces with dimensions 4 ft and 6 ft
4- Two faces with dimensions 15 ft , 9 ft and 6 ft
Area of (1-) = 2(4 × 15) = 120 ft²
Area of (2-) = 2(4 × 9) = 72 ft²
Area of (3-) = 2(4 × 6) = 48 ft²
Area of (4-) = 2[(9 × 9) + (6 × 15)] = 2[81 + 90] = 2 × 171 = 342 ft²
∴ The total surface area = 120 + 72 + 48 + 342 = 582 ft²
Answer:
The length of rectangle is 
The width of rectangle is 
Step-by-step explanation:
Let
x-----> the length of rectangle
y----> the width of rectangle
we know that
The area of rectangle is equal to
so
-----> equation A
-----> equation B
substitute equation B in equation A and solve for y
using a graphing calculator
The solution is
Find the value of x
-----> 
Answer:
Step-by-step explanation:
We have that
Area=pi*r²
D=24 in------------ > r=D/2=24/2=12 in
Area =pi*12²=452.16 in²
the circumference=2*pi*r=2*pi*12=75.36 in
the answer is
the area is 452.16 in² and the circumference is 75.36 in
