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Mathematics

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lesya [120]2 years ago

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Fantom [35]2 years ago

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Answer:

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If = 80°, and m∠BED = 25°, what is ? 55° 30° 65° 20°

Tomtit [17]

The complete question in the attached figure

we know that
The measure of the external angle is the semidifference of the arcs that it covers.
so
m∠BED =(1/2)*[mAC-mBD]-------> solve for mBD
mBD=mAC-2m∠BED
mBD=80-2*25--------> mBD=30°

the answer is
mBD=30°

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MAXImum [283]

I hope this helps you

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Serhud [2]

Answer:

Step-by-step explanation:

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In ΔABC, point M is the midpoint of side AB and point D is the midpoint of segment MC. Prove that the area of ΔADC= the area of

Anna11 [10]

A line segment from a vertex to the midpoint of the opposite side is a "median". A median divides the area of the triangle in half, as it divides the base in half without changing the altitude.
AAMC is half AABC. AADC is half AAMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
ABMC is half AABC. ABMD is half ABMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
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In the circle graph, what is the measure of the central angle for corn?

KatRina [158]

multiply the percentage of the corn by 360 degrees

15% × 360° = 54°

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