Ireally need ! angle pqr is formed by segments pq and qr on the following coordinate grid: angle pqr is rotated 90 degrees counterclockwise about the origin to form angle p′q′r′. which statement shows the measure of angle p′q′r′? a. m∠p′q′r′ = 90 degrees b. m∠p′q′r′ = 180 degrees c. m∠p′q′r′ = m∠pqr d. m∠p′q′r′ = 2 ⋅ m∠pqr