Marks' first lessons in geometry by Bernhard Marks

Author:Bernhard Marks [Marks, Bernhard]
Language: eng
Format: epub
Publisher: anboco
Published: 2017-03-07T23:00:00+00:00

LESSON THIRTY-FIFTH.

REVIEW.

Read nine arcs whose ends are marked. (Diagram 26. )

Read three arcs each of which is one-fourth of a circumference.

Read two arcs each of which is one-half of a circumference.

Why is e g an arc?

What is an arc?

How many degrees in the arc f h? In e h?

If the arc f h were divided into three equal parts, how many degrees would there be in each?

How many degrees in a circumference?

In a semi-circumference?

How many more degrees in a large circumference than in a small one?

If the arc i f is 40°, what is the size of the angle f o i?

If the angle f o g is an angle of 130°, what is the size of the arc f i h g?

How many degrees in each of the adjacent angles f o h, h o e?

When two adjacent angles are equal to each other, what is each called?

How many degrees in a right angle?

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