Answer:
x = ±6
Step-by-step explanation:
x^2/4=9
Multiply by 4 on each side
x^2/4 *4=9*4
x^2 = 36
Take the square root of each side
sqrt(x^2) = ±sqrt(36)
x = ±6
Answer:
51.81 cm^2
Step-by-step explanation:
Find The Half Of 33 which is 16.5
Use The Formula For Area
A=
x r^2
A= 3.14 x 16.5
A= 51.81 cm^2
Aec= 40
Explanation because it’s a 90 degree angle and dea = 50
So 90-50=40
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