Geometry Answers

A rectangular piece of cardboard 18 in. by 23 in. is made into a box with an open top by
cutting a square of side 4 inches from each corner and folding up the sides. What is the
volume of the box in cubic inches?

Given a rectangular Parallelipiped with base a by b and altitude c. Find the area of the
section which contains two diagonally opposite edges of the parallelepiped.

One side of an equilateral triangle is 18cm. The mud point of its sides are joined to form another triangle whose mid points, In turn are joined to form another triangle. The process is continued indefinitely. Find:
1. The sum of triangles' sides. 2. Perimeter of all the triangles. 3. Areas of all the triangles.

PQRS is a Rhombus. m<PQS = (3x=10) and m<SQR = (x=40) Find m<QRS

Line AB and line CD intersect at point E, with point E between A and B and Between C and D. Which rays are opposite rays? the answer options they give me are rays EC and ED, rays CE and DE, rays AB and BA, and rays AE and BE but no correct answer by any chance do you know if so can you tell me

1. Counting 38 cu. ft. of coal to a ton, how many tons will a coal bin 19 ft long, 6 ft wide and 9 ft
deep contain when level full:
2. A tank open at the top, is made of sheet of iron 1 inch thick. The internal dimensions of the
tank are 4 ft. 8 in. long, 3 ft. 6 in. wide, 4 ft. 4 in. deep. Find a) the weight of the tank when
empty; b) when full of salt water. (salt water weighs 64 lb/ft³, iron is 7.2 times as heavy as
saltwater)
3. The edges of s trunk are 3 ft, 4 ft and 6 ft. A second trunk is twice as long, the other edges are 4 ft by 4 ft. How do their volumes differ?
4. A solid concrete porch consists of three steps and a landing.
The steps have a tread of 11 in., a rise of 7 in., and length
of 7 ft. The landing is 6 ft by 7 ft. How much material was
used in its construction?

how we van find question mark (?) in this shape
http://cdn.persiangig.com/download/8V3100/dl

Two altitudes of an isosceles triangle are equal to 20 cm and 30 cm. Determine the possible measures of the base angles of the triangle

Ravi has a plane triangular pilot ABC in which AB = 9m, BC = 7m and CA = 8m. A Flag is hoisted at the midpoint M of the side AC. If the top of the Flag subtends an angle 15° at the corner B of the plot, determine the height of the Flag From the ground.

How to you prove that a median of an isosceles triangle also bisects the vertex angle?

The sides of the triangle are MA, HA & MH. MA is congruent to HA. The median is AT. I must prove that median AT bisects angle MAH. Thank you!