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Cerrena [4.2K]
2 years ago
11

Pleaseee HELPP MEE WITHH THIS QUESTION!

Mathematics
1 answer:
Zina [86]2 years ago
7 0

Answer:

1120°

Step-by-step explanation:

Use the sum of interior angles formula:

180(n-2)

Where n is the number of sides.

In a nonagon, there are 9 sides, substitute 9 for n:

180(9-2)\\180(7)\\1260

Since our nonagon is a regular nonagon, all 9 angles measure the same, so each angle measures:

\frac{1260}{9} =140

Subtract 140 from 1260:

1260-140=1120

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valina [46]

Answer:

AB= 0.625 units (3 s.f.)

∠BAC= 52.9° (1 d.p.)

∠ABC= 32.1° (1 d.p.)

Step-by-step explanation:

Please see the attached pictures for full solution.

- Find AB using cosine rule

- find ∠BAC using sine rule

- find ∠ABC using angle sum of triangle property

4 0
3 years ago
A table is on sale for $289, which is 32% less than the regular price.
prohojiy [21]

Answer:

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Step-by-step explanation:

Given

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Required

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3 0
3 years ago
Round 3184.5641 to the nearest hundred
Ede4ka [16]
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3 0
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AleksandrR [38]
Graph images undergo transformations, one of the types of transformations are rotations.
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Step-by-step explanation:

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