Explanation: Triangle whose sides are midpoints of sides of triangle ABC has a perimeter 45. How long is perimeter of triangle ABC? Triangle ABC Construct a triangle ABC is is given c = 60mm hc = 40 mm and b = 48 mm analysis procedure steps construction; The sides 3 The sides of an equilateral triangle are 9.4 cm, :) A right-angled triangle (also called a right triangle) is a triangle with a right angle (90°) in it. The right angled triangle is one of the most useful shapes in all of mathematics! (It is used in the Pythagoras Theorem and Sine,
