Find the area of the triangle with height h = 100 km and base b = 200 km.

1,000 km2
20,000 km2
10,000 km2
2,000 km²

Area of the triangle is 10,000 km²

Step-by-step explanation:

Area of the triangle = 1/2 × base × height

                                 = 1/2 × 200 × 100 = 10,000 km²

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.