3b – 7 < 32 I don't know the answer help !!
2 answers:
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Answer:
The Correct Option is Second one 108°.
Hence, the measure of each internal angle of a regular Pentagon is 108°.
Step-by-step explanation:
Given:
A Regular Pentagon.
Accordingly, for a Pentagon, the total of the internal angles is given by,
In case of a regular Pentagon, all internal angles are equal.
Hence, divide the total above by 5.
Hence, the measure of each internal angle of a regular Pentagon is 108°.
Answer:
10
Step-by-step explanation:
To find the value of x, create a proportion. A proportion is two equal ratios for similar figures. The two triangles are similar because they are the same shape but not the same size. Create ratios between corresponding sides of figures.
To solve for x, cross multiply:
12(x+4) = (2x+1)(8)
12x + 48 = 16x + 8
48 = 4x + 8
40 = 4x
10 = x