Question

If the sides of a triangle are produced in
order, prove that the sum of the exterior
angles so formed is equal to four right
angles.​

Answer 1

Step-by-step explanation:

1. In geometry, a heptagon is a seven-sided polygon or 7-gon. The heptagon is sometimes referred to as the septagon, using "sept-" (an elision of septua-, a Latin-derived numerical prefix, rather than hepta-, a Greek-derived numerical prefix; both are cognate) together with the Greek suffix "-agon" meaning angle.

Answer 2

Answer: the answer is 360 degrees = 4 X 90 degrees...

Step-by-step explanation: I hope it will help u...