Question

in angle HIJ the measure of angle J is equal to 90° HI is equal to 88 ft,and IJ=62ft . find the measure of angle I to the earest tenths of a degree

Answer 1

Answer:
`45.21^(\circ )`

Explanation:

Given

`\angle J=90^(\circ )`

HI=88 ft

IJ=62 ft

From the figure, we can write

`\cos I=(IJ)/(HI)=(62)/(88)=(31)/(44)\\I=\cos^(-1) ((31)/(44))=45.207^(\circ )\approx 45.21^(\circ )`