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
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?
3 answers
•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
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
First answer is wrong.
2 answers