Which of the following set of angles are found in a set squares ?
30∘,60∘,90∘
20∘,70∘,90∘
75∘,15∘,90∘
45∘,45∘,90∘
It is possible to construct an angle of 75∘ using a 45-45-90 set square.
In ΔABC,∠A=45∘, ∠B=60∘ and ∠C=75∘. The angles of the triangle formed by joining the mid-points of the sides of this triangle are