A triangle has angle measurements of 72°, 101°, and 7° What kind of triangle is it?

2 answers:

6 0

It is a scalene triangle.

Explanation:

There are 3 types of triangle.

1) Equilateral triangle, with all angles of the same size 60°.

2) Isosceles triangle, with two (bottom) angles of same size.

3) Scalene triangle, with NO angles of the same size.

Since 72°, 101° and 7° are not equal, it is a scalene triangle.

iogann1982 [59]3 years ago

5 0

Answer:

it is a scalene triangle coz all angels are different.

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What is the length of the diagonal of a square with side lengths 7 square root of 2 ? round to the nearest tenth if necessary?

mr_godi [17]

There is 2 ways to solve this type of question.

Method 1
--------------------------------------------------
Formula
--------------------------------------------------
a² + b² = c²

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Apply the formula
---------------------------------------------------
(7√2)² + (7√2)² = c²
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--------------------------------------------------
Ans: The diagonal length is 14cm
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_____________________________________________________________

Method 2
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Identify the triangle
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This is a special triangle
45° - 45° - 90°

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Property of the Angles
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x - x - x√2

--------------------------------------------------
Find hypotenuse
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Given that the non-hypotenuse is 7√2

Hypotenuse = (7√2)(√2)
Hypotenuse = 7 x 2
Hypotenuse = = 14cm

--------------------------------------------------
Ans: The diagonal length is 14cm
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3 years ago