If m ∠ABC = 80° what is m∠DBC? Justify your reasoning. Options:

A) Using the Angle Addition Postulate, 20+ m∠DBC = 80. So, m∠DBC = 60°
using the subtraction property of equality.

B) Using the Angle Addition Postulate, 20+80= m∠DBC: So, m∠DBC = 100° using the addition property of equality.

C) Using the addition property of equality, 20 + 80 = 100, so m∠DBC = 100% O

D) Using the subtraction property of equality, 80 + 20 = 60. so m∠DBC = 60​

a) 32pie square meters

step-by-step explanation:

yes

step-by-step explanation:

2 x 503

step-by-step explanation:

its 1006

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.