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mrs_skeptik [129]
2 years ago
14

Find the surface area of the square pyramid. Enter your answer in the box.

Mathematics
1 answer:
Arisa [49]2 years ago
6 0

Answer:

<u>341 cm²</u>

Step-by-step explanation:

Formula :

<u>Surface area = Area of 4 triangle faces + Area of square base</u>

<u />

===============================================================

Solving :

⇒ Surface area = 4 × 1/2 × 11 × 10 + 11²

⇒ Surface area = 2 × 110 + 121

⇒ Surface area = 220 + 121

⇒ Surface area = <u>341 cm²</u>

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Find sin A. <br> Please select the best answer from the choices provided
Phantasy [73]

A key word to remember when doing this type of math is "SOHCAHTOA".

Sine =

Opposite over

Hypotenuse

Cosine =

Adjacent over

Hypotenuse

Tangent =

Opposite over

Adjacent


Since this is a 3, 4, 5 triangle, with the sides just multiplied by 7, the opposite of A which is 28 would be simplified to 4.

And the Hypotenuse would be simplified to 5.

So, the answer is 4 / 5!

8 0
3 years ago
If PQ=7 and QR=10, then PR= what ?
Yuliya22 [10]
If PQ=7 and QR=10,

P=(7/Q) and R=(10/Q)

Therefore:

PR=(7/Q)(10/Q)

=(70)/Q²
6 0
3 years ago
Suppose u=&lt;2,−1&gt; and v=&lt;1,−8&gt; are two vectors that form the sides of a parallelogram. Then the lengths of the two di
tigry1 [53]
| u | = √(2² + (-1²)) = √5
| v | = √ ( 1² + (-8)² = √65
cos (u,v) = ( u * v ) / (| u | * | v |) =
 (2 * 1 + ( -1 ) * ( - 8 )) / √5 √ 65 = (2 + 8) / √5 √65 = 10 / (√5 √ 65 )
The length of a larger diagonal:
d 1² = | u |² + 2 |u| |v| + | v |² = 5 + (2 √5 √65 * 10 / √5 √65 )+65
d 1² = 70 + 20 = 90
d 1 = √ 90 = 3√10
d 2² = 70 - 20 = 50
d 2 = √50 = 5√2
Answer:
The lengths of the diagonals are: 3√10 and 5√2 .
8 0
3 years ago
Find the m please it’s due today . (-11,5) &amp; (2,-4)
d1i1m1o1n [39]

Answer:

m = \frac{-9}{13}

Step-by-step explanation:

I'm assuming by m, you mean the slope.

You have two points. (-11, 5) and (2, -4)

  • m = change in y-value ÷ change in x-value

1) Substitute in the points.

m = \frac{(-4)- 5}{2 - (-11)}

2) Solve.

  • -4 - 5 = -9
  • 2 - (-11) = 13

So, the slope would equal \frac{-9}{13}.

4 0
3 years ago
a family originally bought a home for $273,830. Now the home’s value is 30% higher than that. What is the value of the home now?
gavmur [86]

$355,394

100% +30% = 130% = 1.3

5 0
3 years ago
Read 2 more answers
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