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barxatty [35]
2 years ago
15

Find the area

Mathematics
2 answers:
Kitty [74]2 years ago
7 0

Answer: 54 cm^2

Step-by-step explanation:

The area of a triangle is base*height/2.

To find the missing side of this triangle we can use pythagorean theroem. Let the unknown side = x

15^2 = 12^2+x^2

225 = 144+x^2

x^2 = 81

x = 9

Area = BH/2

Area = 9*12/2

Area = 54 cm^2

Ilia_Sergeevich [38]2 years ago
4 0

Answer:

180

Step-by-step explanation:

sorry if im wrong but it should be

15x12=180

thats how we did it

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The formula s= sqrt SA/6
ikadub [295]
For this case we have the following equation:
 s = root (S.A / 6)
 Substituting values we have:
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 s = root (180/6)
 s = root (30)
 For S.A = 120:
 s = root (120/6)
 s = root (20)
 s = root (4 * 5)
 s = 2 * root (5)
 Subtracting both values we have:
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 Answer:
 
root (30) - 2 * root (5)
 
option 2
3 0
3 years ago
Find the approximate circumference of a circle with a diameter of 100 yards.
elixir [45]

Answer:

D. 314 yds

Step-by-step explanation:

Given:

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5 0
3 years ago
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Zigmanuir [339]
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3 years ago
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xxTIMURxx [149]

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Step-by-step explanation:

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3 years ago
Simplify this expression: 13 + (–12) – (–5) = ? <br> A. –30<br> B. –6<br> C. 6<br> D. 30
anygoal [31]
13+(-12) - (-5) \\ \\ 13 - 12 + 5 \\ \\ 6 \\ \\ Answer: \fbox {C) 6}
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4 years ago
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