asked 138k views
3 votes
Triangle QRS is shown below. Use the information given to determine the measure of ∠ R.

Angel Q= 38.2
Angel S= 52.7
Angel R=??
I’m so confused please help!

1 Answer

2 votes

Answer: r=89.1

Step-by-step explanation: It has been given that,

PQ=PR

So, it is an isosceles triangle, hence ∠Q=∠R. let it be x

Now, we know that the sum of the angles of a triangle = is 180

.

So,

∠P+∠Q+∠R=180

38.2+52.7+x=180

90.9+x=180

taking 90.9 in RHS it becomes -, so

x=180-90.9

x=89.1

answered
User Kawa
by
8.4k points