Isosceles Triangle degrees 18, 81, 81 Small 320×166 Medium 640×331 Large 1024×530 Download Tiff Original 3000×1552 | (116.2 KB) Description An isosceles triangle with angles 18, 81, 81 Keywords 18, 81, acute triangle, acute triangles, angle, angles, Degree, degrees, isosceles triangle, isosceles triangles Galleries Isosceles Triangles Source: Florida Center for Instructional Technology Clipart ETC (Tampa, FL: University of South Florida, 2009)
