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Wittaler [7]
2 years ago
10

A shelf is in the shape of a triangle. Find the angles of the triangle if the measures of the angles are in the ratio 1:2:5 and

Classify it.
Mathematics
1 answer:
Y_Kistochka [10]2 years ago
3 0

Answer:

22.5deg, 45deg, 112.5deg, an obtuse triangle.

Step-by-step explanation:

The sum of angles is 180deg.

If they're in the ratio of 1:2:5, one angle is 1/(1+2+5)=1/8 of 180deg, the others are 2/8 and 5/8, so:

Smallest angle is 180deg * 1/8 = 22.5deg

Second is 180deg * 2/8 = 45deg

Third is 180deg * 5/8 = 112.5deg

it's an obtuse triangle, as it has an angle over 90deg

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3 years ago
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4 0
3 years ago
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scoundrel [369]

Answer:

60

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7 0
2 years ago
Im kinda confused ;-;​
Ivan

Answer:

42-38

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Step-by-step explanation:

In all of these expressions, the 38 has to be negative because that is what you're taking away from the 48. When you have -(- it turns into a +.

In -42 + 38 the 42 is negative, but that is Emma's total amount so it's positive

With -42 -(-38) they did the just added those two together which would make the 42 still negative and the 38 positive.

THen with 42 + 38 the 38 is being subtracted from what she has so you would not add 38 to her total.

7 0
3 years ago
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Answer:

28

Step-by-step explanation:

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