4. Which of the following types of polygons are always similar? Check all that apply. O
Right Triangles
Isosceles Triangles
Equilateral Triangles
Squares
Rectangles
Pentagons
Regular Octagons

false.

step-by-step explanation:

false.

cavalieri's principle makes that statement about the volumes, not about the areas.

my answer is$ 12

step-by-step explanation:

because 15 -2=12

part a: triangles gcb and epb

part b. sides cg and rp are parallel by definition of parallelogram.

angles cgb and e are congruent by being alternate interior angles of parallel lines cut by a transversal. angles gbc and ebp are congruent because they are vertical angles. by aa similarity, the triangles are similar.

part c. since the triangles are similar, the ratios of the lengths of corresponding sides are equal.

calculation of be:

gb/be = cb/bp

(400 ft)/be = 300/200

(400 ft)/be = 3/2

3be = 2 * 400 ft

3be = 800 ft

be = 800/3 ft

calculation of pe:

gc/pe = cb/bp

(350 ft)/pe = 300/200

(350 ft)/pe = 3/2

3pe = 2 * 350 ft

3pe = 700 ft

pe = 700/3 ft