MATH 1022 LSU EXAM 4 (SECTIONS 9.1-10.2)
QUESTIONS WITH VERIFIED ACCURATE ANSWERS
Which of the following describes the goal of solving right triangles?
a. The goal of solving a right triangle is to determine the measure of all angles and the
length of all sides
b. The goal of solving a right triangle is to determine the area of the triangle and the
perimeter of the triangle
c. The goal of solving a right triangle is to approximate the mesures of the two acute
angles
d. The goal of solving a right triangle is to use the Pythagorean Therorem to find the
length of the hyptoenuse of the right triangle. - Answers - a
When solving a right triangle, if the lengths of all three sides of the triangles are known,
then which acute angle must be determined first?
a. Always determine the measure of the obtuse angle first
b. Always determine the measure of the larger of the two acute angles first
c. Always determine the measure of the smaller of the two acute angles first.
d. It does not matter which angle to determine first - Answers - d
Which of the following statements accurately describes the relationship between the two
acute angles of a right triangle?
a. The measures of the two acute angles of a right triangle are always greater than or
equal to 45 degrees.
b. The two acute angles of a right triangle are always complementary
c. The two acute angles of a right triangle are always supplementary
d. The two acute angles of a right triangle are always congruent. - Answers - b
In the right triangle provided to the to the right, suppose that the lengths of sides a and c
are known. Also, suppose that the measures of angle A and angle B are known. Which
of the following equations CANNOT be used to determine the length of side b?
a. a^2+b^2=c^2
b. sin B= b/c
c. tan A= b/a
d. cos A= b/c - Answers - c
Which two given pieces of information are NOT helpful when trying to solve a right
triangle?
a. The length of the side opposite of a specific acute angle and the length of a side
adjacent to that same acute angle
b. The length of the hypothenuse and the measure of an acute angle
c. The measure of two acute angles
QUESTIONS WITH VERIFIED ACCURATE ANSWERS
Which of the following describes the goal of solving right triangles?
a. The goal of solving a right triangle is to determine the measure of all angles and the
length of all sides
b. The goal of solving a right triangle is to determine the area of the triangle and the
perimeter of the triangle
c. The goal of solving a right triangle is to approximate the mesures of the two acute
angles
d. The goal of solving a right triangle is to use the Pythagorean Therorem to find the
length of the hyptoenuse of the right triangle. - Answers - a
When solving a right triangle, if the lengths of all three sides of the triangles are known,
then which acute angle must be determined first?
a. Always determine the measure of the obtuse angle first
b. Always determine the measure of the larger of the two acute angles first
c. Always determine the measure of the smaller of the two acute angles first.
d. It does not matter which angle to determine first - Answers - d
Which of the following statements accurately describes the relationship between the two
acute angles of a right triangle?
a. The measures of the two acute angles of a right triangle are always greater than or
equal to 45 degrees.
b. The two acute angles of a right triangle are always complementary
c. The two acute angles of a right triangle are always supplementary
d. The two acute angles of a right triangle are always congruent. - Answers - b
In the right triangle provided to the to the right, suppose that the lengths of sides a and c
are known. Also, suppose that the measures of angle A and angle B are known. Which
of the following equations CANNOT be used to determine the length of side b?
a. a^2+b^2=c^2
b. sin B= b/c
c. tan A= b/a
d. cos A= b/c - Answers - c
Which two given pieces of information are NOT helpful when trying to solve a right
triangle?
a. The length of the side opposite of a specific acute angle and the length of a side
adjacent to that same acute angle
b. The length of the hypothenuse and the measure of an acute angle
c. The measure of two acute angles
