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olga2289 [7]
3 years ago
10

What is the value of x? º

Mathematics
1 answer:
horsena [70]3 years ago
6 0

y=180-109=71

In a triangle, the sum of angles is 180.

So, x=180-71-44=65

x=65

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Answer:

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Step-by-step explanation:

Volume of a cone(V) is given by:

V = \frac{1}{3} \pi r^2h             ....[1]

where,

r is the radius and h is the height of the cone.

As per the statement:

A cone with radius 5 units and ts volume is 105 cubic units

⇒r = 5 units and V = 105 cubic units

Substitute these given values and use \pi = 3.14 in [1] we have;

105 = \frac{1}{3} \cdot 3.14 \cdot 5^2 \cdot h

Multiply both sides by 3 we have;

⇒315 = 78.5 \cdot h

Divide both sides by 78.5 we have;

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or

h = 4.01273885 units

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Step-by-step explanation:

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