1) Find the area of this figure if has a length of 10 cm,
a width of 5cm and a height of 6 cm.
A) 80 cm²
B) 50 cm²
C) 40 cm²
D) 25 cm²
2) Find the surface area of a cube which has a side of 5cm.
A) 31 cm²
B) 125 cm²
C) 150 cm²
D) 180 cm²
3) Find the surface area of a sphere whose radius is 3cm.
A) 113.04 cm²
B) 28,26 cm²
C) 113.04 cm³
D) 28.36 cm³
4) A soft drink can has a diameter of 3 cm and a height of 6 cm. What is the surface area of the can?
A) 80 cm²
B) 70.65 cm²
C) 112 cm²
D) 95.4 cm³
(brainliest ko maka sagot) kung ok lng w solution sana
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Answer:
1. B
solution: Area = 50 cm²
SOLUTION:
Given:
L = 10 cm
W = 5cm
b= 5 cm
h = 6 cm
SOLVE FOR THE AREA OF THE GIVEN FIGURE:
A = LW + 1/2bh
A = (10 cm × 5 cm) + 1/2(5 cm × 6 cm)
A = 25 cm² + 1/2(30 cm²)
A = 25 cm² + 25 cm²
A = 50 cm²
2. C
solution: Cube
Solve for surface area
A=150cm²
A=6a2=6·52=150cm²
3. A
solution: Sphere
Solve for surface area
A≈113.1cm²
A=4πr2=4·π·32≈113.09734cm²
4. C
Volume = 325.28cm^3 (approx)
Surface Area= 216.85cm^3(approx)
Step-by-step explanation:
Radius = 3cm
Height = 11.5cm
Volume = 22/7 * r^2 * h
-> 22/7 * 9 * 11.5
-> 325.28cm^3(approx)
Surface Area = 2 * 22/7 * r * h
-> 44/7 * 3 * 11.5
-> 216.85cm^3(approx)
Step-by-step explanation:
I hope it helps