Get premium membership and access questions with answers, video lessons as well as revision papers.

The angles of a triangle are 3n, n+50° and 2n-20°. What is the smallest angle of the triangle A 75° B 25° C 55° D 30°

      

The angles of a triangle are 3n, n+50° and 2n-20°. What is the smallest angle of the triangle
A 75°
B 25°
C 55°
D 30°

  

Answers


Dana
The sum of angles in a triangle is equal to 180°
3n+n+50+2n-20= 180
6n+30=180
6n = 150
n = 25°
The angles of the triangle are 75°, 55° and 30°
The smallest angle is 30°
The answer is D

Dana05 answered the question on October 15, 2019 at 14:25


Next: I bought a goat for sh 240 and sold it for sh 300. What was the profit as a percentage? A 33/1/2% B 2% C 25%...
Previous: A hare runs at a speed of 20 m/s. Express this in km/h A 80 km/h B 72 km/h C 90km/h D 18km/h

View More Class 8 Mathematics Questions and Answers | Return to Questions Index


Learn High School English on YouTube

Related Questions