Answer:
43°
Step-by-step explanation:
The angle of a straight line is 180°, 62° and 75° of the angle is taken so what is remaining is the angle for BEC.
180-(62+75)
180-137
43°
Answer:
1017.36 mm²
Step-by-step explanation:
d = 2r => r = d/2 = 36mm/2 = 18 mm
A = π·r²
= 3.14×(18mm)²
= 3.14×324mm²
= 1017.36 mm²
Answer:
r=5.42cm
h=10.83cm
Step-by-step explanation:
Hello!
To solve this problem please use the following steps, the complete procedure is attached.
1. Raise the equation for the volume of a cylinder and solve for the height (H)
2. Use the equation for the surface area of a cylinder, and replace the height using the equation found in step 1.
3. Derive the equation with respect to the radius and equal it to zero, then solve for the radius of the cylinder. Remember that the objective is to find that with the minimum surface area, the required volume is generated.
4. Once the radius is found, find the height with the equation from step 1
Answer:
322
Step-by-step explanation:
23.4 rounded to the nearest whole number is 23
13.9 rounded to the nearest whole number is 14
23 times 14 = 322