Biofuels and nuclear power may prove useful as ______. energies to bridge the time between fossil fuel depletion and new renewables. Whether using a food crop as a source of biofuels is environmentally sustainable would have to consider all of the following, EXCEPT _______. A) the impact on food supplies and prices. B) the amount of fertilizers used and their impact on aquatic ecosystems.
Other than the diagonal side of the right triangle, the other two sides make a perpendicular right angle triangle. Other than the diagonal side of the right triangle, the other two sides make a perpendicular right angle triangle. The right angle is 90 degrees.  The right angle is 90 degrees.
The sum of the three angles of every triangle always equals 180Â° . A right triangle always has one angle equal to 90Â° and two angles whose sum is 90Â° , making a total of 180Â° . A rectangle is a four sided shape. with four right angles (90Â° ).