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Genrish500 [490]
3 years ago
9

What is the lateral surface area of a square pyramid with a side length 11.2 cm and a slant height 20 cm

Mathematics
2 answers:
Serga [27]3 years ago
6 0

Answer:

b.  448 cm²

Step-by-step explanation:

madam [21]3 years ago
3 0
Notice the picture below

the lateral area, or just the area of the sides, well, the sides are really just 4 triangles, so just get the area of each, and sum them up, that's the lateral area

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Write down a formula for the nth term for each number pattern below
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Answer:

Step-by-step explanation:

a_{n} =2(2n+1)

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A ratio compares two fractions. True or false
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3 years ago
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A triangle has sides of length 5, 8, and 10. What is the measure of its largest angle?
masha68 [24]
We'll use the Law of Cosines
We'll call
side a = length 5
side b = length 8
side c = length 10
and their corresponding angles as A, B and C
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cos (C) = (5^2 + 8^2 - 10^2) / 2 * 5 * 8
cos (C) = 25 + 64 -100 / 80
cos (C) = -11 / 80
cos (C) = <span> <span> <span> -0.1375 </span> </span> </span>
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8 0
3 years ago
The sides of a triangle have lengths 2x + 2, 4x, and 5x + 1. The longest side of the triangle has a length of 5x + 1. For what v
Savatey [412]

Answer:

Step-by-step explanation:

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5x²+2x-3>0

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(x+1)(5x-3)>0

x+1=0,gives x=-1

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4 0
3 years ago
Number of
sergejj [24]

Answer:

45

Step-by-step explanation:

u add

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