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lora16 [44]
3 years ago
15

What is the surface area of that

Mathematics
1 answer:
lbvjy [14]3 years ago
7 0

Answer:

The surface area 76.32 in^2

Step-by-step explanation:

To find the surface area of a square pyramid we have to find the area of the base and the area of the sides and add them together.

Area of the base:

Since the base is a square, all we have to do is multiply 3.6 by 3.6.

3.6 * 3.6 = 12.96

The area of the base is 12.96 in^2

Area of the sides:

Since the sides are triangles, to find the area we have to multiply the length by the height and divide by 2.

3.6 * 8.8 = 31.68

31.68/2 = 15.84

The area of one of the sides is 15.84

Surface Area:

To find the surface area we have to add the area of the base and the area of the 4 sides together.

12.96 + 4(15.84)

12.96 + 63.36 = 76.32

The surface area is 76.32 in^2

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Answer:

1. 69°

2. 97°

3. 145°

4. 150°

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Step-by-step explanation:

To find the angle measure of the missing angle, we have to note that the angle measures of a quadrilateral will all equal up to be 360°.

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87+112+92=291

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<em>Number 2:</em>

<em></em>124+71+68=263<em></em>

<em></em>360-263=97<em></em>

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<em></em>360-215=145<em></em>

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<em>Number 4:</em>

<em></em>72+49+89=210

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<em></em>69+65+98=232<em></em>

360-232=128

<em>Number 6:</em>

<em></em>77+123+86=286<em></em>

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<em><u>Hope this helped!</u></em>

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