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SAT® Subject Test in Math 1 & 2

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Angles in an Isosceles Triangle

SATSTM-WEYLI1

If one measure of an angle in an isosceles triangle is $40$ degrees, then which one of the following could be a measure of angle in that same triangle?

A

$50\text{ degrees }$

B

$60\text{ degrees }$

C

$70\text{ degrees }$

D

$80\text{ degrees }$

E

$110\text{ degrees }$