ASVAB Math Knowledge Polygons Practice Test 948890 Question 1 of 5

ASVAB Math Knowledge Polygons Practice Test 948890

Question 1 of 5

Triangle Geometry

A triangle is a three-sided polygon. It has three interior angles that add up to 180° (a + b + c = 180°). An exterior angle of a triangle is equal to the sum of the two interior angles that are opposite (d = b + c). The perimeter of a triangle is equal to the sum of the lengths of its three sides, the height of a triangle is equal to the length from the base to the opposite vertex (angle) and the area equals one-half triangle base x height: a = ½ base x height.

$22$\frac{1}{2}$$

If the base of this triangle is 5 and the height is 9, what is the area?

	45
	31$\frac{1}{2}$
	22$\frac{1}{2}$
	32$\frac{1}{2}$

	45
	31\(\frac{1}{2}\)
	22\(\frac{1}{2}\)
	32\(\frac{1}{2}\)