Right Triangle Relationships and Trigonometry; Quadrilaterals — Test

Question 1

In which triangle is the value of x equal to tangent inverse of open paren 3 point 1 over 5 point 2 close paren ? (Images may not be drawn to scale.)

Revolt · Accepted Answer

Image with description A right triangle has a right angle at the lower-right vertex and angle x at the lower-left vertex. The bottom horizontal side is labeled 5.2, and the right vertical side is labeled 3.1.

Question 2

Which classification best represents a triangle with side lengths 10 in., 12 in., and 15 in.?

Revolt · Accepted Answer

acute, because 10 squared plus 12 squared is greater than 15 squared

Question 3

Which equation can be used to find the measure of angle LJK ?

Revolt · Accepted Answer

cosine of x is equal to 10 over 15

Question 4

What is the measure of angle LKJ ? Round to the nearest whole degree.

Revolt · Accepted Answer

49 degrees

Question 5

If the diagonal of the sandbox measures 14 feet, which best describes the shape of the sandbox?

Revolt · Accepted Answer

a quadrilateral, because angle cap c and angle cap x are acute

Right Triangle Relationships and Trigonometry; Quadrilaterals — Test Answers

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