Question

exploring secants, angle measures, and arc measures
explore the properties of angles and arcs
formed by two intersecting secants.

1. find the difference of arc measures.

$m\overset{\frown}{ac} - m\overset{\frown}{de} = 56^\circ$

1. multiply the angle measure by 2

$2(m\angle abc) = \square^\circ$
$m\angle abc = 28^\circ$
$m\overset{\frown}{ac} = 80^\circ$
$m\overset{\frown}{de} = 24^\circ$
correct!
check

Explanation:

Step1: Substitute given angle value

$2(m\angle ABC) = 2\times28^\circ$

Step2: Calculate the product

$2\times28^\circ = 56^\circ$

Answer:

$56$