use pythagoras:
c^2 = (27)^2 - (13)^2
c^2 = 560
c = 23.6643....cm
What is the measure of DG?
1 answer:
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Answer:
x = ± 2
Step-by-step explanation:
Given
x² = 20 ( take the square root of both sides )
x = ± = ±
= ± 2