Hey there!
In an isosceles triangle the 2 base angles are congruent, therefore angle B would measure 50 degrees just like the measure of angle A.
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Use the formula
a_n = a_1•r^(n-1)
a_23 = 25•(1.8)^(23 - 1)
Can you finish?
The answer is -0.266666667.
Round how you need
Answer:
640
Step-by-step explanation:
8^2 = 64
10*64 = 640