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BartSMP [9]
3 years ago
15

Unsimplified ratio of circles to triangles:

Mathematics
1 answer:
12345 [234]3 years ago
6 0

Answer:

Ok hi im good at math just let me do this in ten mins ok

Step-by-step explanation:

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Elena L [17]

Answer: 4x4=16, 6x6x6x6=1296, 1296+16=1312

the answer is 1312

Step-by-step explanation: find the area. 4x4, 6x6x6x6, the 3 is only there to throw you off you dont do anything with the 3

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ANTONII [103]

The surface area of the triangular prism is 828 in².

Solution:

Let the missing length of the triangle be x.

Using Pythagoras theorem,

In right triangle, square of the hypotenuse is equal to the sum of the squares of other two sides.

12^2+x^2=15^2

144+x^2=225

Subtract 144 on both sides of the equation.

x^2=225-144

x^2=81

Taking square root on both sides, we get

x = 9

The missing length of the triangle is 9 in.

Area of the front triangle = \frac{1}{2}\times 12\times 9

                                         = 54 in²

Area of the back triangle = \frac{1}{2}\times 12\times 9

                                         = 54 in²

Area of the sloping rectangle = 20 × 9

                                                 = 180 in²

Area of the back rectangle = 20 × 12

                                             = 240 in²

Area of the base rectangle = 20 × 15

                                             = 300 in²

Total area = 54 in² + 54 in² + 180 in² + 240 in² + 300 in²

                 = 828 in²

The surface area of the triangular prism is 828 in².

4 0
3 years ago
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