[6] [8] compute the working hours; In 7;30 Out 11;50 In 12;15 Out 17;00?

Question

8cm,4cm,5cm find the surface area of the rectangular prism [92cm or 184cm or 104cm or 160cm?

find the area of a circle with a diameter of 14ft, use 3.14 for pie?
find the area of a triangle with base of 6.2 inch and a height of 4.5 in {15.2in or 10.7 in or 27.9 in or 13.95 in?
0.07kl= how many Liter?

Answer 1

(1) Working hours: 9hr and 5min. per day.

(2) Surface area:
(8x4)2 + (4x5)2 + (8x5)2 =
(32)2 + (20)2 + (40)2 =
64 + 40 + 80 = 184cm²

(3) Area of circle is given by: π r²
π r² = (3.14) 7²
π r² = (3.14) (49)
π r² = 153.86 ft²

(4) Area of Triangle: ½ Base x perpendicular hight.
½b*h = (½)(6∙2)(4∙5)
½b*h = 13∙95in²

(5) 1000L = 1kL
(0∙07)(1000L) = (0.07)(1KL)
70 L = 0.07 KL

I hope you will learn something from these questions so that you will be able to do your own questions the next time.

Answer 2

Working Hours

7:30 to 11:50 = 4 hours 20 minutes
12:15 to 17:00 = 4 hours 45 minutes

4 + 4 + (65/60) = (8 + 1)hours + 5 minutes = 9hrs and 5 minutes

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Rectangular Prism Surface Area

T = 2(ab + ac + bc)
T = 2((8 * 4) + (8 * 5) + (4 * 5))
T = 2(32 + 40 + 20)
T = 2(92)
T = 184cm^2

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Circle Area

A = pi * ((d^2)/4)

A = pi * ((14^2)/4)
A = pi * (196/4)
A = 49pi
A = 49 * 3.14
A = 153.86ft^2

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Triangle Area

A = (1/2)bh
A = (1/2)(6.2)(4.5)
A = (1/2)(27.9)
A = 13.95in^2

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.07kl = .07 * 1000L = 70L