Answer:
C
Step-by-step explanation:
tan45° =
=
= 1
Answer:
A = 5.76 cm²
Step-by-step explanation:
3.2 cm x 1.8 cm = 5.76 cm²
Expand the right side:


Notice that 98 = 2 * 7 * 7, so we have
and
.
Then

and

Angle ADC is an inscribed angle of arc AC. So the measure of arc AC would be 46. Angle CBA is a central angle, which means it is equal to the measure of arc AC. So the answer is 46. Hope this helps!
Answer:
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