Question

please give me right answer ​

Answer 1

Answer:

1) both 75

Step-by-step explanation:

1) Since PQ=PR, therefore it is a isosceles triangle.

Using property,

150 = PQ+PR

therefore, both angles are of 75.

2) let x be the common factor of all angles

therefore, 2x+3x+5x = 180 => x = 18

therefore,

measure of first angle = 2*18 => 36

measure of second angle = 3*18 => 54

measure of third angle = 5*18 => 90

therefore it is a scalene triangle.

3) Since angle b + angle A = angle acd

therefore,

65+x = 115 => x = 50°

therefore, angle a = 50°

Answer 2

Hope this helps you.

And sorry for the diagrams.