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Lynna [10]
4 years ago
13

Find the area of an equilateral triangle with radius 3 root 3.leave in simpliest radical form

Mathematics
1 answer:
goldenfox [79]4 years ago
8 0

Answer:

Area = 27√3/4 square units

Step-by-step explanation:

Since the shape is an equilateral triangle, all the sides will be equal

Area of the triangle = 1/2 * base * height

Get the height

(3√3)² = h²+(3√3/2)²

27 = h² + (27/4)

h²= 27 - 27/4

h² = 27 - 6.75

h² = 20.25

h = √2025/100

h = 45/10

Area = 1/2 * 3√3 * 45/10

Area = 135√3/20

Area = 27√3/4 square units

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Answer:

(5, 0) and (-3, 0)

Step-by-step explanation:

To find the x-intercepts, let's set y = 0.

0 = x² - 2x - 15

0 = (x - 5)(x + 3) -- To factor x² - 2x - 15, we need to find 2 numbers with a sum of -2 and product of -15; these numbers are -5 and 3.

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P(Sophomore∩Girls)= \frac{7}{30}

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