How many equal chords are there in a circle?
Space and AstronomyThere are infinite points on a circle. Therefore, we can draw infinite number of chords of given length. Hence, a circle has infinite number of equal chords. Are two chords equal in a circle? 2) Equal-chords of congruent circles are equidistant from the corresponding centers. If two circles are congruent and AB = CD then
What is the conic section of a circle?
Space and AstronomyAs a conic section, the circle is the intersection of a plane perpendicular to the cone’s axis. The geometric definition of a circle is the locus of all points a constant distance r {\displaystyle r} from a point ( h , k ) {\displaystyle (h,k)} and forming the circumference (C). How do you identify a
Which word best describes a rectangle with diagonals that are perpendicular?
Space and AstronomyWhat best describes a rectangle with diagonals that are perpendicular? If the diagonals of a quadrilateral are perpendicular, then it is a rhombus. False – diagonals don’t have to be congruent or bisect each other. The diagonals of a rectangle bisect its angles. What is it called when diagonals are perpendicular? Basic properties Opposite angles
Is the moon between the earth and the sun?
Space and AstronomyDuring a lunar eclipse, Earth comes between the Sun and the Moon, blocking the sunlight falling on the Moon. There are two kinds of lunar eclipses: A total lunar eclipse occurs when the Moon and Sun are on opposite sides of Earth. A partial lunar eclipse happens when only part of Earth’s shadow covers the
Do nebulae have planets?
Space and AstronomyA planetary nebula is a region of cosmic gas and dust formed from the cast-off outer layers of a dying star. Despite their name, planetary nebulae have nothing to do with planets. Can planets exist in a nebula? The answer would be yes. As the planet orbits its star that orbits the center of the
What shapes are all similar?
Space and AstronomyJust like congruent shapes, all corresponding angles of similar shapes are equal. Equilateral triangles are similar. Notice that just like squares all corresponding angles in an equilateral triangles are equal. What shape is always similar? Specific types of triangles, quadrilaterals, and polygons will always be similar. For example, all equilateral triangles are similar and all
What is lunar eclipse and solar eclipse?
Space and AstronomyTraditionally, eclipses are divided into two major types: solar and lunar. Solar eclipses occur when the Moon passes between Earth and the Sun, leaving a moving region of shadow on Earth’s surface. Lunar eclipses occur when Earth passes between the Sun and the Moon, casting a shadow on the Moon. What is lunar eclipse in
How many galaxies are in the Hubble Deep Field?
Space and AstronomyThis view of nearly 10,000 galaxies is called the Hubble Ultra Deep Field. The snapshot includes galaxies of various ages, sizes, shapes, and colours. The smallest, reddest galaxies, about 100, may be among the most distant known, existing when the universe was just 800 million years old. How many galaxies are in Hubble Ultra Deep
How do you solve similar figures?
Space and AstronomyHow do you solve similar figures step by step? Video quote: Now in order to solve it remove to a cross multiply. So eight times X that's eight X and that's going to be equal to six times 12 which is 72. How do you find similar figures? Two figures are considered to be “similar
How can area models be used to solve multiplication problems?
Space and AstronomyMultiplying by a 1-digit number using area models Show the problem as the area of a rectangle, and then break that rectangle into smaller chunks for easier solving. This method is also known as box multiplication. How do you use models for multiplication? Video quote: First we'll start with the product of 20 and 40