135k views
5 votes
What is the measure of
∠1 if
∠1 is (8x)
∘ and
∠2 is (2x - 3)
∘?

What is the measure of ∠1 if ∠1 is (8x) ∘ and ∠2 is (2x - 3) ∘?-example-1
User Jeff Beck
by
7.3k points

2 Answers

5 votes

Answer:

<1=146.4

<2=34.6

Explanation:

<1+<2=180 degrees

So,

8x+(2x-3)=180

10x-3=180

10x=183

X=18.3


subsitute:

<1=8x

<1=8(18.3)

<1=146.4


<2=2x-3

<2=2(18.3)-3

<2=34.6

User Tezromania
by
7.8k points
3 votes

∠1 + ∠2 = 180

Substituting the given expressions for ∠1 and ∠2:

8x + (2x - 3) = 180

Simplifying and solving for x:

10x - 3 = 180

10x = 183

x = 18.3

Now we can substitute x back into the expression for ∠1 to find its measure:

∠1 = 8x = 8(18.3) = 146.4 degrees.

Therefore, if ∠1 and ∠2 add up to 180 degrees and ∠1 is given as 8x° and ∠2 is given as (2x - 3)°, then ∠1 measures 146.4 degrees

User Amran
by
6.7k points