2 years ago

Find the sizes of unknow angles of this triangle

1 answer:

Volgvan2 years ago

4 0

<h2>Answer:</h2>

To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.

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Mean of four numbers a ,b, c, and d is 8 and mean of seven

Nana76 [90]

Answer:

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Step-by-step explanation:

Mean of four numbers a, b, c, and d is 8:

(a + b + c + d)/4 = 8
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Mean of seven numbers x, y, z, a, b, c and d is 12:

(x + y + z + a + b + c + d)/7 = 12

Substitute the sum of 4 numbers:

x + y + z + 32 = 7*12
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x + y + z = 52

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52/3 = 17 1/3 or 17.33

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Find the sizes of unknow angles of this triangle​

Find the sizes of unknow angles of this triangle