The temperature was 54° at 7:00 a. m. At 3:00 p. m. on the same day, the temperature was 82°. What is the rate of change in temperature during this time?

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

the answer is z7+8/5

ιт ιѕ 12 αв

нσρє ι ¢συℓ∂ нєℓρ уα

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