Answer:
20
Step-by-step explanation:
f = 2f - 20
f - 2f = - 20
- f = - 20
f = 20
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Find area of one triangle
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Area of triangle = 1/2 x base x height
Area of triangle = 1/2 x 9 x 11.75
Area of triangle = 52.875 ft²
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Find area of two triangles
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Area of 2 triangles = 52.875 x 2
Area of 2 triangles = 105.75 ft²
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Find the cost of the flower beds
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1 ft² = $4.25
105.75 ft² = 105.75 x 4.25
105.75 ft² = $449.44 (nearest hundredth)
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Answer: $449.44
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Answer:
We are given that angle AOB is a central angle of circle O and that angle ACB is a circumscribed angle of circle O. We see that AO ≅ BO because
✔ all radii of the same circle are congruent.
We also know that AC ≅ BC since
✔ tangents to a circle that intersect are congruent.
Using the reflexive property, we see that
✔ side CO is congruent to side CO.
Therefore, we conclude that △ACO is congruent to △BCO by the
✔ SSS congruence theorem.
please mark brainliest.... hope you have a great day ! XD
Answer:
2 hours
Step-by-step explanation:
30×1=30
30×2=60
Answer:
Step-by-step explanation:
The solution of each question is self-explanatory.
<u>Used properties</u>
- Vertical angles are congruent
- Angle sum property of circle
- Central angle is same as intercepted arc measure
<h3>#8</h3>
- mED = mAB = mAC - mBC = 90° - 52° = 38°
<h3>#9</h3>
- mEA = mBCD = mBC + mCD = 52° + 90° = 142°
<h3>#10</h3>
- mBDC = 360° - mBC = 360° - 52° = 308°