How many sides and corners does a semi circle have?

How many sides and corners does a semi circle have?

1 straight side, 1 curved side, 2 vertices where the curved side and the straight side meet at the two ends of the straight side, 2 angles at the ends of the straight side and forming 90 deg with the tangents to the curved side.

How many angles has a semi circle?

In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle. The full arc of a semicircle always measures 180° (equivalently, π radians, or a half-turn). It has only one line of symmetry (reflection symmetry).

How many right angles does a semi circle have?

two right angles

Does a semi circle have right angles?

The angle inscribed in a semicircle is always a right angle (90°). The inscribed angle is formed by drawing a line from each end of the diameter to any point on the semicircle. No matter where you do this, the angle formed is always 90°.

How many right triangle can be drawn in a semi-circle?

three right triangle

What is the largest triangle that can be inscribed in a semicircle?

Approach: From the figure, we can clearly understand the biggest triangle that can be inscribed in the semicircle has height r. Also, we know the base has length 2r. So the triangle is an isosceles triangle.

What is the maximum area of a triangle inscribed in a semi circle?

We know, all angles subtended by a diameter on it’s semi-circular arc are right angles. So, all the semi-circular triangles are right-angled triangles standing on same base, 2r; but with varying height (maximum height being r). Therefore, the maximum area of the triangle = (1 / 2) * (2r) * (r) = (r^2).

What degree is 1/3 of a circle?

We know that, in terms of radians and degrees, that an angle that turns through the entirety of a circle is 360 degrees. To find 1/3 of it, we just multiply by 1/3. Therefore, our answer is 120°. I hope this helps!