The angle at the circumference in a semicircle is 90°. Angle STU = 90° Angles in a triangle add up to 180°. The angle on a straight line is 180°. The angle VOY = 180°. The angle at the centre ...

“When seen from the side however, it has an almost perfect semicircle curve.” Though most men are unlikely to think much about their bums, research has shown that it’s one of the body parts ...

When a triangle is formed inside a semicircle, two lines from either side of the diameter meet at a point on the circumference at a right angle. The angle in a semicircle is a right angle of \(90 ...