Answer: 130
Step-by-step explanation:
Find the height of the triangle by using the pythagorean theorem
So the height is sqrt(100 - 25) = 5sqrt(3)
The area of the triangle is 30 * 5sqrt(3) / 2 = 75sqrt(3) = 129.9 = 130
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Answer:61.8°
Step-by-step explanation:
Length of arc=(theta)/360 x 2 x π x radius
9.7=(theta)/360 x 2 x 3.14 x 9
9.7=56.52(theta)/360
cross multiply
9.7 x 360=56.52(theta)
3492=56.52(theta)
Divide both sides by 56.52
3492/56.52=56.52(theta)/56.52
61.8=theta
theta=61.8°
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Answer:
Acute angle
Step-by-step explanation:
170-100=70
An angle between 0 and 90 degrees is an acute angle.
