Question

40 points

In AIJK, the measure of ZK=90°, the measure of ZJ=76°, and JK = 3.6 feet. Find the
length of IJ to the nearest tenth of a foot.

Answer 1

Concepts:

• Cos
• Proportions
• Algebra 1

Answer: 14.9 ft

How I got it:

`(JK)/(IJ)` = cos 76 degrees

`(3.6)/(y)` = 0.2419

x =
`(3.6)/(0.2419)`

x = 14.9 ft

Answer 2

• 14.9 ft

Explanation:

• JK/IJ = cos 76°
• 3.6/x = 0.2419
• x = 3.6/0.2419
• x = 14.9 ft