901
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-2x(x-3)=-11 (correct two decimal place)
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vertex angle =
Answer:
The measure of the vertex angle of the next isosceles triangle is 10°
Step-by-step explanation:
The given information are;
The first isosceles triangle; Base angles = 89°, vertex angle = 2°
The second isosceles triangle; Base angles = 88°, vertex angle = 4°
The third isosceles triangle; Base angles = 87°, vertex angle = 6°
The fourth isosceles triangle; Base angles = 86°, vertex angle = 8°
The vertices of the isosceles triangles form a arithmetic projection, with a common difference of 2°
Therefore, the vertex for next isosceles triangle = 8° + 2° = 10°
The base angles are derived from the sum of interior angles of a triangle which is 180°
Which gives;
2 × Base angles + Vertex angle = 180°
2 × Base angles + 10° = 180°
2 × Base angles = 180° - 10° = 170°
Base angles = 170°/2 = 85°
Base angles of the fifth isosceles triangle = 85°
From which we have;
The fifth isosceles triangle; Base angles = 85°, vertex angle = 10°
The measure of the vertex angle of the next (fifth) isosceles triangle = 10°
The scientific notation of 12.312 trillion is .
Scientific notation is a means of representing large number numbers in standard form using power of 10.
The given number
= 12.312 trillion
There are 12 zeros in a trillion.
The scientific notation of 12.312 trillion is .
Learn more about scientific notation here: brainly.com/question/1199149