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kolbaska11 [484]
3 years ago
12

Please help!!!!! find surface area of prism!!!!!!

Mathematics
2 answers:
notsponge [240]3 years ago
4 0
228cm^2

The explanation can be seen above:)
deff fn [24]3 years ago
3 0

Answer:

228cm^2

Step-by-step explanation:

Formulas we'll use: area of a rectangle is length x width, and area of a triangle = 1/2x base x height

the base is a rectangle, 10 by 3 cm. 10 x 3 = 30cm^2

the sides are also rectangles, 13 by 3 cm. 13 x 3 = 39, but there are 2 of them, 39 x 2 = 78cm^2

The top and bottom are triangles, 1/2(10)(12) = 1/2(120) = 60, but there are 2 of them, 60 x 2 = 120cm^2

Add up the areas to get your total surface area. It's in square cm

30 + 78 + 120 = 228cm^2

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Answer:

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Step-by-step explanation:

Let the two numbers be x and y

According to the first condition

their is is 6

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Now according to second condition

twice the first number i.e. 2x added to three time the second number i.e. 3y is 10

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Now putting this value of x in equation (ii)

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opening the brackets

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