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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!
1. The radius of a regular decagon is 6m. What is the length of its apothem?
2. The area of a triangle with sides of length 10 in. and 17 in. and an included angle of 113° is equal to the area of a regular heptagon. Determine the length of each side of the heptagon.
3. Determine the area of the waste material in cutting out the largest circle (diameter is 23 cm) from a regular decagon.
1. The angle of a sector is 300 and the radius is 15 cm. Find its area and perimeter.
2. Obtain the area and perimeter of the segment of a circle whose radius is 11cm and central
angle of 75°?
3. The section of a rocket ship toy consists of a semicircle, a rectangle, and a triangle
as shown at the right. The altitude of a rectangle is three times the radius of the
semicircle, the altitude of the triangle is twice the same radius and the area of the
triangle is 20 sq. ft. Find the area of the section.
If DB bisects ADC m<1=(3x+4), and m<2=(5x-2) find x
1. Find the height of a parallelogram with 10 sides and 20 inches long, and an included angle of 35 degrees. Also, calculate the area of the figure.
2. A certain city block is in the form of a parallelogram. Two of its sides measures 32 ft and 41 ft. If the area of the land in the block is 656 ft^2, what is the length of its longer diagonal?
3. The area of an isosceles trapezoid is 246 m^2. If the height and the length of one of its congruent sides measures 6 meters and 10 meters, respectively, find the length of the two bases.