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What is the answer to A 15-m long ladder rests against a wall at an angle of 60 degrees with the ground How far is the foot of the ladder from the wall?
15*cos(60) = 7.5 7.5 m
A 10-ft ladder leans against a wall so that the base of the ladder is 4 ft from the wall How high up on the wall will the ladder reach to the nearest foot?
14
How long must a ladder be to reach the top of a twenty foot wall if the ladder and the wall for a 32 degree angle?
Twenty divided by the cosine of 32 gives you 23.584 ft
The width of a wall is 22m and its height is 3.5m How many bricks of length 22cm and width is 7 cm can make a single wall?
Width = 22m Height = 3.5m --- Convert both of these into cm to convert into same units Width = 22 x 100 = 2200cm Height = 3.5 x 100 = 350cm Next find the area of the wall ---Area of rectangle = height x width Area of the wall = 2200 x 350 = 770,000 sq. cm Now for the bricks Length = 22cm Width = 7cm Area = 22 x 7 = 154 sq.cm To find the number of bricks needed we have to divide the area of the wall with the area of one brick 770,000 / 154 =5000 Therefore 5000 bricks are needed to make a single wall
What is the area of four walls of the room?
It depends on the measurements of the walls or how long they are.If the room was square, and each wall measured 2metres, then you multiply the measurements of two sides together to find the area - 2x2=4m2.If it was a rectangular room measuring 2m on two sides and 4 on two sides, multiply 2x4 which equals 8m2.Remember, the formula for working out area or a square or rectangle is length x width.
