Question

8. * In ∆PQR, ∠P : ∠Q : ∠R = 3 : 2 : 1. If I(PQ)=5, what is l(QR)?​

Answer 1

Step-by-step explanation:

this Triangle is equilateral

equilateral triangle all sides and Angels Ratio is equal Therfore PQ=QR=5

Answer 2

Answer:

30°, 90°, 60°

Step-by-step explanation:

the sum of the angles of a triangle is equal to 180°

$3x + 2x + 1x = 180$

$6x = 180$

$x = \frac{180}{6} = 30$

$3x = 3 \times 30 = 90$

$2x = 2 \times 30 = 60$

$verification \\ 30 + 90 + 60 = 180$