Geometry Answers

Line can have different attributes, which one is not relevant
1.kind
2.negative
3.Quality
4.Direction
5.Length

How to find the area of a triangle, knowing the lengths of all its sides?

The bisector of the angle A at the base of the trapezoid ABCD is perpendicular to it's diagonal and crosses the side CD,at the point E and CE : ED=2:3,Find the ratio of BC:CK where k is the intersection point of the bisector with line BC.

Problem E
The white square in the drawing below is located in the centre of the grey rectangle and has a surface area of A. The width of the rectangle is twice the width a of the square. What is the surface of the grey area (without the white square)?
Image is found on the website below
https://iymc.info/docs/IYMC_Qualification_Round_2020.pdf

The angle at the vertex of a cone is measured using a 30mm diameter coin as shown in the figure below. If the coin lies 3.72mm below the top of the cone, determine the value of angle θ.

The angle at the vertex of a cone is measured using a 30mm diameter coin as shown in the figure below. If the coin lies 3.72mm below the top of the cone, determine the value of angle θ.

The starting edge of a ruler is broken and first prominent mark on it is indicating 2.5 cm , when a pencil kept along with this ruler whose initial edge is touching 2.5 cm mark on ruler and final edge is colliding with 10cm mark on ruler, then what is the actual length of pencil?

A software designer is mapping the streets for a new racing game. All of the streets are depicted as either perpendicular or parallel lines. The equation of the lane passing through A and B is -7x + 3y = -21.5. What is the equation of the central street PQ?

QR is a diameter of a circle,centre O,and P is a point on its circumference.
Given that PQR= 25°, calculate
a, POR
b, OPR
c, the value, correct to 2 significant figures of PQ/QR.

A chord of length 12 cm is drawn in a circle of radius 9 cm. Calculate the perpendicular distance from the center of the circle to the chord.