area of a semi ellipse

The length of the semi major axis of an ellipse is 3, the eccentricity is 0.3. What is the distance from a focus of the ellipse to the closer vertex? => 0.9 or 3.9 or 2.1 or 2.7..

a is the length of the semi major axis and e is the eccentricity of an ellipse. What is the distance from a focus of the ellipse to the closer vertex? => a (1 - e ) or a e or a (1 + e ) or a - e ..

What is the length of the semi major axis of the ellipse x 2 + 16 y 2 = 16? => - 4 or 16 or 1 or 4..

What is the length of the semi major axis of the ellipse 64 x 2 + 4 y 2 = 256? => 2 or 8 or 64 or 68..

What is the length of the semi minor axis of the ellipse x 2 + 4 y 2 = 4? => 1 or 3 or 2 or 4..

ABCPA is a quadrant of a circle of radius(a) 32.2 cm. A semi-circle is drawn with AC ‾ as diameter. Find the area of the shaded portion. => 522.4 square cm or 528.4 square cm or 523.4 square cm or 518.4 square cm..

Find the area of the sphere of radius r , obtained by rotating a semi circle about the x -axis. => 2 π r or 4 π r or 4 π r 2 or 2 π r 2..

PS ‾ is the diameter of a circle of radius 18 in.. Q and R are two points on the diameter such that PQ ‾ , QR ‾ and RS ‾ are equal. Semi-circles are drawn with PQ ‾ and QS ‾ as diameter..

Johannes Kepler derived three laws, which govern the planetary motion. These are, 1. The orbit of a planet is an ellipse with the Sun at the one of the foci. 2. The line joining the planet and the Sun sweeps equal areas in equal intervals of time. 3. The cube of the mean distan..

Johannes Kepler derived three laws, which govern the planetary motion: The orbit of a planet is an ellipse with the Sun at the one of the foci The line joining the planet and the Sun sweeps equal areas in equal intervals of time The cube of the mean distance of a planet..