Question

Two sides of a right triangle are 8, 15 and 17 units. if each side is doubled, how many sqare units will the area of the new triangle be?

Answer 1

Area of right triangle = 1 / 2 Area of a rectangle

In this case:

A1 = ( 1 / 2 ) * 8 * 15 = 20 units

When each side is doubled:

A2 = ( 1 / 2 ) * 2 * 8 * 2 * 15 = 4 * ( 1 / 2 ) * 8 * 15 = 4 A1

A2 = 4 * 20 = 80 units

Answer 2

•Trigonometry - Bosnian, Sunday, September 9, 2012 at 1:07am

Area of right triangle = 1 / 2 Area of a rectangle

In this case:

A1 = ( 1 / 2 ) * 8 * 15 = 60 units

When each side is doubled:

A2 = ( 1 / 2 ) * 2 * 8 * 2 * 15 = 4 * ( 1 / 2 ) * 8 * 15 = 4 A1

A2 = 4 * 60 = 240 units

Answer 3

First answer is wrong.