# What are the missing angle measures in triangle abc? 1.4° and 88.6° 18.6° and 71.4° 35.5° and 54.5° 44.4° and 45.6°

What are the missing angle measures in triangle abc?
1.4° and 88.6°
18.6° and 71.4°
35.5° and 54.5°
44.4° and 45.6°

$What are the missing angle measures in triangle abc? 1.4° and 88.6° 18.6° and 71.4°$

## This Post Has 4 Comments

1. baidentheodore617 says:

sorry for that it won't happen again

2. iiAyeItzAsh5244 says:

we know that

In the right triangle ABC

∠$A+$∠$B=90$ ------> by complementary angles

so

Step $1$

Find the measure of angle B

we know that

$tan\ B=\frac{opposite\ side\ angle\ B}{adjacent\ side\ angle\ B}$

in this problem

$opposite\ side\ angle\ B=7in\\ adjacent\ side\ angle\ B=5in$

so

$tan\ B=\frac{7}{5} \\ \\ B=arc\ tan\frac{7}{5} \\ \\ B=54.5\ degrees$

Step $2$

Find the measure of angle A

$A+B=90\\ A=90-B\\ A=90-54.5\\ A=35.5\ degrees$

therefore

35.5° and 54.5°

3. kaysavage7674 says:

C) 35.5 and 54.5 is the answer.  I solved it on paper to check the steps by steps.

Step-by-step explanation:

$Triangle A B C is shown. Angle B C A is a right angle. The length of C B is 5 inches and the length$